Given that,
2a + 5b=22
b = 2
Find the value of a.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2