Answer:
Part A: 15 and 100 are the coefficients!
Part B: Two terms in the expression!
Step-by-step explanation:
Maria because she is in debt of $210 meaning she owes $210. That is greater than the other debts.
18x² - 60x + 50
= 2 (9x² - 30x + 25 ) ⇒⇒⇒ take 2 as common from all terms
note: 9x² = 3x * 3x and 25 = 5*5 and 3x * 5 *2 = 30x
so, this is a complete square
= 2(3x-5)(3x-5)
= 2(3x-5)²