Iulia K.

Is the pluperfect indicative of hacer in the yo form: habia hecho or just habia

 in a bag you have three black marbles seven green marbles thirteen purple marbles and ten orange marbles. You are going to pick a marble and then your friend is going to pick a marble to keep.... more

The second train travels 62 mph faster than the first. If the second train overtakes the first at 11:00pm, what is the speed of each of the two trains? 

Jack and Jill, together, have 19 paperback books. If jack lost 3 of his books, but Jill doubled her supply, the two of them, together, would have 40 books. How many does each have now? 

1. Solve the system: 2x + y = 5 x – y = 132. Bobby is three years older than twice Arianna’s age. If the total of their ages is 9, how old is Bobby, and how old is Arianna?3. Solve the system: y =... more

What is the probability of drawing a Jack from a deck of 52 cards?   If the two Jokers are placed into this deck of cards, how does that change the probability of the drawing?

Write equations and factoe

Taurus is the zodiac constellation with the greatest number of stars visible to the naked eye, while Aries has the least number of visible stars. Suppose the following is true: Thirty more stars... more

mult step equaltions 

if all you have is $3.00, what percentage tip will you be able to leave? use a percent equation and a proportion

i don't know how to factor please teach me  

how do I evaluate the expressions, then write the answer in scientific notation?   1.  (4.2 x 10^2) (4.2 x 10^5)   2.  (2.5 x 10 ^-2)^4       write this number only in scientific... more