The student council invested $4000, part at 8.5% per annum and the remainder at 9.5% per annum. After one year the interest from the 8.5 % investment was $16 more than
the interest from the 9.5 % investment. How much was invested at each rate?

it depends on the weather. because i have flown to seattle when it was pouring down rain and there was one time i flew to ohio when it was snowing hard. whats your situation.

step-by-step explanation:

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

(-5,-28)

i graphed to on desmos.