There were 15 apples in a bowls. dan used some apples to make a pie. now there are 7apple in the bowl. how many apple did dan use?

Solve the system of equations. y= 2x y= x^2 - 15

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.