do you have to find a common denominator

do you have to find a common denominator

I'm filling out a table and have to find a equation using the t(n)= formula but I came from a different school and have no idea how to do this stuff.

Leah uses some of her savings on batting practic. The cost of renting a batting cage for 1 hour is $6. She rents the cage for 9 hours in each of two months. What was the change in Casey's savings...

(-1+2i)(-5+3i) having trouble on this one, please show me step by step and the answer. Thank you so much. I appreciate it

Multiply (-1+2i)(-5+3i) Write answer as a complex number in standard form

Multiply (3-i)(6-6i) Write answer as a complex number in standard form

multiply -i(-4+4i) write answer as a complex number in standard form

1500 people were surveyed

Multiply (3-i)(6-6i) write answer as a complex number in standard form

I used in here the formula: Speed=distance/time. Correct me if im wrong, I got 20kph as my answer. I'm quite unsure with it. Can you please show me the correct equation/solution in this word problem...

The questions was originally asked Alyssa has five red balloons. Tim has 8 dozen times more than Alyssa. How many does Tim have?

Using examples, explain why multiplying the numerator and denominator of the same fraction produces an equivalent fraction.

I can do pi/2 times pi and know that it is 2pi/2 and reduces to pi, but I am confused on how to do 3pi/2 times pi.

Plz multiply and simplify..and show all steps.. Thanks

My daughter has this problem: Laura found 67 x 436 by multiplying and subtracting. Show how Laura found the product. I showed my daughter the multiplication method and then used division...

For this problem, assume that you are to pick 3 cars from the motor pool, which contains 8 subcompact cars, 8 compact cars, and 5 midsize cars.

involving the casting of a play in a community theater. Assume that there are 8 unfilled roles: 3 male and 5 female. There are 6 men and 9 women, including Sally, auditioning for a part in the play...

How do you find the answer to (9z+8)^2? Thank you!

what is 3 and 1/2 divided by 5 and 2/3?

We know how to multiply all of our other problems. But when we do this one the same way, the answer comes out different. What are we doing wrong?