Answer:
8x+7y^2
Step-by-step explanation:
3x-13=305
3x=305+13
3x=318
(3x)÷3=318÷3
x=106
check.. (3×106)-13=305
318-13=305
305=305
10 1/2 x 2 2/3= 28, 3 1/3 x 4 2/7= 14.2857142857, 7/2 - 4/5= 2.7
You're answer would be 3843000 because the number in the hundredths place is 5 so you would round up your answer