Which of the following illustrates the inverse property of addition?

17 + 4 + 21 = 21 + 21

17 + 4 = 4 + 17

17 + 0 = 17

17 + - 17 = 0

A survey found that 4 out of 100 people have red hair. On the basis of this survey, how many people in a group of 12,000 people are likely to have red hair

Andrea is saving money for a car. She makes $13 an hour shampooing dogs at the local groomer. After 18% is subtracted from her paycheck she puts 50% of her remaining check in her savings account. Let x represent the number of hours Andrea works.

Juan went out to lunch with five friends. They decided to divide the bill evenly among them. Juan estimated that his lunch cost $5.25. The entire bill came to $37.20.

Simplify. three fourths plus five eighths minus negative 7

you car has 30 miles per gallon your palanning to drive 930 miles how many gallons of gas do you need

A plumber charges $50 to come to a house and $20 an hour for work time. If h represents the number of hours worked, which expression gives the total amount the plumber charges? a. 50h + 20 b. 20h + 50 c. 20 (h + 50) d. + 50

Find the product of 3 x 1/7

How do i solve 6y-5=-3 (2y+1)

Each batch of mrs. crawleys toffee makes 14 pieces of toffee. If sandy needs 8 dozens pieces of toffee, how many batches does she have to make?

You're given two side lengths of 10 centimeters and 8 centimeters. The angle between the sides measures 40°. How many triangles can you construct using these measurements? Answers = 0, 1, 2, infinitely many