13+5-7 is what percent

Evaluate [ (40 + 5) - 27] : 9 ⋅ 2

Mark and Jon each decide to start saving money. Mark has $150 dollars and plans on putting $20.00 in his account each month. Jon is a little of a procrastinator. He has only $100 but plans on putting $25 in his account after the first month.

A and B are vertical angles. If A = (5x-5) and B = (2x+19), then find the value of x.

Evaluate the expression for the given values. mx-y when m=5, x=3, and y=8

What is the area of square abcd

The Fibonacci sequence is perhaps best known from its appearance in the novel and movie "The Da Vinci Code." What are some of the real world applications of this famous sequence?

Two groups collect litter along the side of the road. It takes each group 5miniutes to clean up a 200-yard section. How long does it take to clean up two miles? Explain how u solved the problem.

Jerome deposit 3700 in a certificate of deposit that pays 6 1/2

An angle measures 158° less than the measure of a supplementary angle. What is the measure of each angle?

Are the ratios 10 to4 and 15 to 6 in proportion