Find the value of a sphere whose r is 20 inches

Timmy has 6 pennies. Sara steals 3 pennies from Timmy. How many pennies does Timmy have now?

2. Evaluate x (-y + z) for x = - 1, y = 2, and z = 5. A 7 B 3 C-7 D-3

Which shows 4x 2y = - 16 in slope-intercept form? a. y = 2x - 8 b. y = - 2x - 8 c. y = 1/2x - 8 d. y = 1/2x - 16

How do u solve? Keith bought a sofa on sale for 657.00. This price was 27% less than original price. What was the original price?

7 - (-12) - 15, Simplify.

What is the percentage of 0.5

981,657 rounded to nearest ten thousand

A nutrition label states that there are 36 grams of carbohydrates in each serving. this account for 12% of daily value. how many grams of carbohydrates are recommended per day?

The cosine of the complimentary angle to 58° a. 0.74 c. 0.83 b. 0.85 d. 0.94

What is the volume of the rectangular pyramid shown below? 9 in. 8 in. 7 in.