Mark and Alex are each saving up for a beach trip. Alex begins with $50 and earns $8.75 an hour. Mark begins with $30 and earns $10.15 an hour. After approximately how many hours will they have the same amount of money saved?

ab will be equal to

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

step-by-step explanation:

your answer is a

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6