determine the equation of variation if y varies jointly as w and the square of x and inversely as z, and y = 27 when w = 6 , x = 3 and z = 1 .

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)

i think the amount would be $140.62