Two spheres have radii of 5 and 9. What is the ratio of their surface areas?

a. 5:9

b. 25:81

c. 10:18

d. 125:729

7 is 25% of what number

1/9 rounded to the nearest 1/2.

Mr. Kole has 30 students in his class. He has twice as many girls as boys. What is the ratio of boys to total students?

What is the value of x in the proportion StartFraction 2 x plus 7 over 3 x minus 4 EndFraction equals 11 over 2?

how many 200 mL cups can be filled from a 3 L bottle

8. If 6x2 = 54, then x = ? (1) 29.0 (2) 3.0 (3) 14.5

Jalen has 30 ounces of a solution that is made of up 30% acid and 70% water. How many ounces of water must Jalen add to this solution to create a solution that is 20% acid and 80% water?

The coordinates A (0,0) B (0,4) and C (2,0) are graphed and connected together. What 3 dimensional shape will be created

Sams fruit cellar earns a $0.40 profit for each apple that it sells and a $0.40 profit for each banana that it sells. What expression shows sams total profit from selling Apples (a) and banana (b) ?

A doboule nummberline shows that in 4 seconds a turle can swim 36 meters how meny meters can it swim in 3 seconds