He would have paid 932.53 by 899.75-20+52.78= 932.53
Answer:
y = 2x - 16
Step-by-step explanation:
perpendicular lines = have negative-reciprocal slope
slope: -1/2 => negative-reciprocal => 2 ↓ slope
substitute (4, -8) and the slope 2 into the slope-intercept form(y = mx + b) to find b:
=> -8 = 2(4) + b => b = -16
plug in the slope 2 and b = -16 to the slope-intercept form:
y = 2x - 16
45 feet. you just need to find the perimeter which is just adding all the sides. 8+15+12+10=45