Two sides of a triangle have the same length. The third side measures 4 m less than twice the common length. The perimeter of the triangle is 20 m. What are the lengths of the three sides?

Fred worked these hours during the week: 8, 4 1/2, 3 3/4, 7 1/2, 4 3/4. If he is paid $5.15 per h, how much did he earn? $133.90 $146.78 $144.20 $139.05

A sector of angle 125° is revoked from a thin circular sheet of radius 18cm. it is then folded with straight edges coinciding to form a right circular cone.

Write an arithmetic expression that calculates the yearly interest earned on a amount that's stored in a decimal variable named principalAmount at an interest rate that's stored in a decimal variable named interestRate.

It's elimination linear equations - x+y=-2 X+y=-8

Prime factorization of 212

How do you write 304,800,400 in expanded form and standard

If George has 507 marshmallows and Hannah has 3 times as much, how much does Hannah have?

How do you tell whether the ratios form a proportion

Which number is an irrational number

Show your work. - 3 (x+2) + 5x=-9. solve and check.