What would 8.9 be as a percent? (Sorry for all the percent questions)

Increase the number by 0.07

Which line has a slope of 3/4

There were 20 girls and 10 boys on the swim team last Summer. This summer, the number of girls decreased by 30% and the number of boys increased by 40%. How many member are on the swim team this summer?

What is 6811.09 round to ten

How would i solve 8x squared plus 4x = 0

D-21.4=87.9 Explain your answer

Calculate 6.75-3.1 and round to the correct number of significant digits

noah and his Children went into the grocery store and they were still in apples for one dollar each and mangoes for two dollars each Noah has $20 to spend and most by at least nine apples and mangoes all together if Noah decided to buy for apples

The radius of a circle with area A is approximately √A/3. The area of a circular mouse pad is 54 square inches. Estimate its radius to the nearest tenth.

Which number is not a perfect square? A) 4 B) 9 C) 144 D) 84