solve the system of equations by the substitution method. then use the solution to evaluate the expression 2x(−3+y). 6x+2y+1=13+10y−x 5x=y+26−2x the value of the expression

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

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)

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota