What should be added to twice the rational number
-1/3 to get 4/5

Find two numbers if their sum is 91 and the ratio is 6: 7?

Identify the percent of change as an increase or a decrease. 75 people to 25 people response - correct increase decrease question 2 find the percent of change. round to the nearest tenth of a percent.

The length of a lap is 15 meters. if lisa wants to swim 450 meters this week,how many laps must she swim