Explain the difference between solids that are polyhedra and solids that are not polyhedra.

A country's population in 1991 was 59 million. In 2000 it was 63 million. Estimate the population in 2009 using the exponential growth formula.

Match the numbers in standard notation with the corresponding numbers in scientific notation.

Brian and Heidi went shopping at the mall. Brian spent 30% of the money he had on video games. Heidi spent 25% of her money on clothes. If Brian had $140 and Heidi had $180, who spent more money? Explain how you know.

Quincy wants to find the capacity or volume of a cereal bowl which measure best describes the capacity or volume of a cereal bowl

Solve for r. - 13 = r/9 + 8

What is 59.69 written in expanded form

Which expression is equivalent to 73 ⋅ 7-5?

What are the measures of all three angles of triangle ABC with side lengths 8,11, and 17?

NeNe tripled a cookie recipe for a party. The original recipe called for 5.25 cups of sugar. NeNe tripled the sugar amount and poured it into a mixing bowl. The mixing bowl got knocked over and 4.46 cups of sugar spilled.

What is the standard form equation of 4x+7¥=11