Answer:
-28
Step-by-step explanation:
The nearest whole number rounds to 6
The nearest tenth rounds to 5.70
The nearest hundredth rounds to 5.70
Subtract 7a from both sides giving you 10=-5a and divide everything by 5. This gives you a=-2
Divide 100 to 56 = 56/100= 0.56 then you wanna times it by 50 so then it would be.56x50=28
2/10 represents 20 percent, as 10 is 100% because it is the Max, so something like 4/10 would be considered 40%