Which one of the following statements expresses a true proportion?

A. 3:4 = 9:12 B. 54:9 = 6:3 C. 2:1 = 1:2 D. 7:9 = 8:9

What is the y-value in the solution to this system of linear equations? 4x + 5y = - 12 -2x + 3y = - 16

The ratio of the lengths of two adjacent sides of a rectangle is 1/5. If it's perminiter is 24 then how wide is the rectangle

A national study showed that 33.7% of boys and 28.3% of girls are involved in sports after school. Ethan concluded that more boys than girls are involved in after-school activities. Why might his conclusion be incorrect

The area of a triangle is 6 square feet. The base is 3 times its height. What is the base of the triangle?

When making a snack bowl, Drew mixes 76 cereal pieces with 19 marshmallows. How many cereal pieces are in Drew's snack mix for every one marshmallow?

A student pays for 8.9 pounds of apples with a $10 bill. How much change does the student receive if the apples are. 99 per pound

Which statement describes whether a right triangle can be formed using one side length from each of these squares?

A circular mirror has a radius of 11.5 inches. How much framing do you need to frame the mirror

How many solutions does this system of equations have? A) No solution B) two solutions C) one solutions D) infinitely Many solutions

Tim's bank contains quarters, dimes and nickels. He has 3 more dimes than quarters and 6 fewer nickels than quarters. If he has 63 coins, write and solve an equation for how many quarters Tim has.