Brian has been saving $7 each week. Today he spent $77 of the savings, and he now has $42 left. For how many weeks has he been saving?

What is the product of the radical expression. (7-2square root) (8+2 square root)

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2