What is the equation of the line perpendicular to 2x + y = 0 that passes through the point (2, 2)? a. y = -2x + 6 b. y = -1/2x + 3 c. y = 1/2x + 1 d. y = 2x - 2

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be