Answer:
150
Step-by-step explanation:
10%=15
100%=150
15 x 10=150
to check find 90% of 150 which is 135
150-135=15
Answer:
C. He should have added t instead of subtracting t.
Step-by-step explanation:
The answer is step 1 because it should have been 600 x 4= 100 x 6 x 4.