little bit hard

little bit hard

I have an A, and I got 21 out of 42 on a test. I'm scared I might fail, or get below a D or C, and I'm not really sure how to calculate it. Please help!

a car driver knows that he needs 44 gas gallons to cover a 200 miles . if the engine is adjusted and fixed he would only 80% of gas to cover same distance how many miles did he cover with 44...

Ali is driving to Chicago. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes). Ali has 47 miles to his destination after...

mr cheong saved $765 of his salary. he gave 1/6 of his salary to his wife and spent 5/11 of remainder on transport. he had 1/4 of salary left. how much was his salary for the month?

and that she puts it on her desk, and leaves to get coffee.next classify the type of trangles formed by the easel and the desk according to its angle

A flock of birds left to go to Africa together. Half went astray in fog. One Eight are lost in a sandstorm. 6 are killed Finally 42 arrive safely to Africa.

An open box is to be formed out of a rectangle piece of cardboard whose length is 12cm longer than its width. To form the box, a square of side 5 cm will be removed from each corner of the cardboard...

Help with the question please it hard

∑ ( 1/( (5i)^n + n) )

this is a hard question I need help

Aliens with three heads, three arms and hands and three legs and feet, are visiting Earth. You observe how a group of 5 aliens greets each other. They seem to have to do everything in threes. A greeting...

It is a problem solving question

Patrick brought notebook and pens for her daughters, he brought 8 notebooks and 3 pens for isha and spent 365pesos .for any he brought 3 notebooks and 2 pens and spent 150 pesos.How much the notebook...

Desired result Depends on 1.Car taking us home Having enough gas in the car 2...

Help please thank u

Miguel's weekly allowance is ¥500. Weekly, he spends ¥120 on food, ¥115 on transportation, and ¥130 on supplies. How much is left from his weekly allowance to put away from savings?

i need help with this problem.

Amy has $500 in her bank account. She deposited $1840 into the account. On the same week, she withdrew $763. If there were no ther deposits or withdrawals mad, what was the balance in her account...

a person who has all the answers but can’t solve their own problem?