A.) Parallel lines has equal slopes, hence slope of required equation = slope of y = 2x - 4 = 2
required equation is y - y1 = m(x - x1)
y - 7 = 2(x - 4)
y - 7 = 2x - 8
y = 2x - 8 + 7
y = 2x - 1
The factors of 90 are: 2*3^2*5
or: 2,45, 3,30, 5,18, 6,15, 9,10, 1,90
in order: 1,2,3,5,6,9,10,15,18,30,45,90
Answer:
He spent $30.54
Step-by-step explanation:
$4.45+$16.30=$20.75
$20.75 times 1.0865=$22.544875 rounded to 2 d.p. = $22.54
$22.54+$8=$30.54
