You deposit $280 each quarter into an account earning 7.8% interest compounded quarterly. a) How much will you have in the account in 15 years? $ b) How much total money will you put into the account? $ c) How much total interest will you earn?​

answer: the value of x is 7cm

step-by-step explanation:

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