What is the answer to this math problem-4 (x+13) + 3x=80

The ratio of boys to girls in a class room is 5 to 7. If there are 30 boys then how many girls are there

Haley cut a 10 2/3 ft of rope into pieces that are each 8/9 of a footlong how many pieces of rope did she cut

Michelle poured 7/8 cup of water from a pitcher into a glass. Then she poured another 2/3 cup. What is the change in the amount of water in the pitcher? Explain.

Which pair of triangles can be proven by the HL theorem

Find the volume of the cone. Round your answer to the nearest hundredth. 297.82 cm3 B. 301.59 cm3 C. 306.36 cm3 D. 315.63 cm3

A 21-foot flagpole casts a shadow. The distance along the ground from the base of the pole to the top of the shadow is 11 feet. What is the distance from the top of the pole to the tip of the shadow?

What is the surface area of a radio that is 7 in by 11 in by 2 in

Ten children are to be divided into an a team and a b team of 5 each. the a team will play in one league and the b team in another. how many different divisions are possible?

What is 656 divided by 78

What is the least common multiple for 165 and 22?