What is the solution to the system of equations? y = –3x 6 y = 9 a.(–21, 9) b.(9, –21) c.(–1, 9) d.(9, –1)

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

$5400 is? invested, part of it at 11? % and part of it at 8? %. for a certain? year, the total yield is ? $522.00. how much was invested at each? rate?

Which expression is equivalent to 64 - 9x^2?