Dianna just bought a home. She paid $750,000. She is able to pay 20% of the loan off each year. Which of the following equations represents this scenario? Assume y represents the total amount of the loan remaining and x represents the amount of time in years?.​ a)y=750000(0.80)^x
b)y=750000(0.20)^x
c)y=750000(x+0.20)
d)y=0.80(750000+x)

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

8x - 61 = 17add 8x = 88x = 11 (cannot be proven)4(3(7) - 8) = 524(21 - 8) = 5284 - 32 = 52 (proven)