A 1-unit by 3-unit rectangle is shown below. what is the area of the shaded rectangle?

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

How are algebraic expressions evaluated using substitution?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?