Volume of a sphere?

A solid plastic ball is a sphere with radius 4 in. How much plastic does it take to make one ball? Use 3.14 for π.

What is the value of x in the equation (x+2) ^2=x^2+16^2

On a farm, 4 out of every 15 acres of the land are used to grow crops. Wheat is grown on of the land used to grow crops. What percentage of the total area of the land on the farm is used to grow wheat?

Make n the subject of the formula: M=3n+5

Carly sold 18 rolls of wrapping paper. That is 2 times as many rolls as jasmine sold.

Expand the form of the given binomial (x+1) ^2

Does the fraction 1/2 make the equation 1/34 + 8/17 = 1/2 true?

Remember that you can multiply by the reciprocal of the divisor when you divide by a fraction. find each quotient. simplify if possible 1. 1/3:2 2. 1/7:7 3. 1/2:8 4. 1/8:2

Draw a area model to solve the following. Find the value of the following expression. 30 * 60

15 nickels are stacked vertically how many inches tall is the stack

Isabelle desperately wants an I-Pod Touch. After researching on-line she discovers the l-Pod she wants is $300. After begging her parents to buy the l-Pod for her, they make a deal with Isabelle.