Which expression has a solution of 56, if r = 8?

6r

7r

8r

9r

There are 24% of boys in a school. If the number of girls are 456, find the total number of students in the school.

Add the fraction and simplify the answer 2/12+4/6

What is the solution to the system of equations? 4x-8y=-16 x-2y=-8 a. Use the substitution method to justify that the given system of equations has no solution. b. What do you know about the two lines in this system of equations?

Where do I start? cotx/secx=cscx-sinx

Consider circle h with a 3 centimeter radius. if the length of minor arc rt is 23π, what is the measure of ∠rst?

How many square centimeters are in a rectangle that measures 1 meter by 3 meters

Select all that are like terms to 5a^5b^4. a^5b^4 5a^4b^5 -2a^5 -a^5b^4 9a^5b^4 2a^5b^5 6b^4

Three times the difference of a number and 7 is 18

A cafeteria used 5 gallon of milk in preparing lunch. How many 1-quart containers of milk did the cafeteria use?

Shawn has a cherry tree in his yard. Currently the tree is 14 feet tall. That is 40% taller than it was when Shawn planted it. How y'all was the tree then?