Answer:
7.5
Step-by-step explanation:
3x+4y=36y=-1/2+8=
$19.4
Simple Interest=SI
Principle(deposit)=P(97)
Rate= R(4/100=0.04)
Time= T(5)
SI=P•R•T
SI=97x0.04x5
SI=19.4
Interest earned = $19.4
10-55xy-30