Sofia is 4 years younger than Mark. David is 7 years older than Mark. How old will Sofia be when David is 30 years old?

Write an equation of the cosine function with amplitude 3 and period 4π.

Evaluate 9 over m+4 when m=3

What is. 000747 in scientific notation

Elaine practices violin 5 days each week the model shows the number of days Elaine practices in 6 week how many weeks and all the healing practice the piano during the six weeks

Two numbers have a sum of 30 and a product of 209. what is the positive difference between them?

Round 93.0129 to the nearest thousandth and how show work

Solve for the variable yx7=35

There are 9 more pencils then pens in a container. There are 25 writing utensils in the container in all. How many pens are there in the container?

How do I find the answer to 2g = 12 pt

Last year Henry made 32 one cups serving of soup school party two times