Tell how to find 81-16 using mental math

Nina and Cindy went to the early show. Tickets were $3.00 each. They shared a jumbo popcorn for $4.50 and each girl bought a small soda for $1.75 each. How much did each girl spend?

MS. Arvelo wants to buy a new TV. She makes $50 a week pus an additional $20 each person she tutors. How many people will she have to tutor if the TV cost 120 dollars?

if 200 people were surveyed and 23% of the people's favorite vegetable was green beans how many people liked green beans

Does subtraction exhibit a property of closure over the set of real numbers? Is subtraction commutative? If not, give an example to demonstrate.

Assume that by continuing your education, you increased your yearly earning potential from $21,484 to $39,746. If the additional education costs $54,000, in about how many years will it pay for itself?

A local store owner pays her employees time and a half for overtime. That means for every hour an employee works more than 40 hours per week, the store will pay 1.5 times the regular hourly wage of $8.50.

Factor the expression. 5x + 15 The factored expression is

Factor: x2 - 14x = - 48

If c (5,5) and d (7,3), then what is the length of CD? Round to the nearest tenth

Which ordered pair is a solution of y = x + 4? A (0,0) B (5,54) C (7,28) D (9,13)