21 is what percent less than 35?

Simplify the following expression. (-2 + 4i) - (3 - 5i)

An interior designer purchased 4 1/2 yards, 6 2/3 yards and 9 1/4 yards of fabric to make curtains How many yards of fabric did they purchase?

Kira is using the figure shown to prove the Pythagorean theorem. She starts by writing the equation (a+b) ^2 - c^2=4 (1/2ab) because she knows two equal ways to represent the area of the shaded region.

Mei and Scott are selling wrapping paper for school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Mei sold 6 rolls of plain wrapping paper and 3 rolls of holiday wrapping paper for a total of $90.

Find the value of 5.2^2

What is the degree of 4a5b2+2ab3?

A resort has 380 rooms with space for 6 people. Estimate the greatest number of people who could be in these rooms at the same time

4 (960+2-125) + 5 what is the solution to this mathematical expression?

Which of the following laws is described in the situation below? If segment AB measures 4 inches, then segment BC measures 5 inches. If segment BC measures 5 inches, then segment CD measures 4 inches.

TRUE OR FALSE. The carrying capacity of Earth can be determined accurately without any ambiguity.