Factorise: a^2 + 8a - 20

Suppose the skaters complete one lap around a park that has the shape of a regular pentagon what is the sum of the angles through which they turn

The lengths of the sides of a triangle are 11.25 inches, 9.25 inches, and 10.25 inches. What is the perimeter of the triangle?

A sample of 80 high school seniors, 45% of which are female, were surveyed as to whether or not they are employed outside of school. 25% of the boys surveyed said they are not employed.

Algebra write a mixed number 64 piece so that 314 times P is more than three one fourth

InSarah's math class, 20% of students earned an A on a test. If there were 30 students in a class, how many got an A?

Rosa can till 375ft of land in 15min what is Rosa's tilling rate

Pam buys the following items: a shirt that costs $11.99, pants that cost $23.98, and a belt that costs $9.95. She has a coupon for 20% off the entire purchase. About how much will the three items cost?

Ronna put on a sticker in the shape of a parallelogram. the sticker had a base of 6.5 cm and a height of 10 10.1 centimeters. what is the area of the sticker?

You are riding your bicycle. It takes you 9min to go 2.5 mi. If you continue traveling at the same rate, how long will it take you to go 7 mi?

7,272,1320 standard form