Problem 1
subtract 3 x
5y=-3x+11
divide 5
y=3/5x+2.2'
Problem 2
add 5x
7y=5x+9
divide 7
y=5/7x+1.3'
'notice'
you can put 2.2 into a fraction (11/5) and 1.3 (9/7) if your teacher allows it, but i put them into decimals
To find the sum:

Therefore the answer is a^3+12a^2+14a+5.
Hope it helps!
561 percent because we will move the decimal 2 paces and we will put the percent so it will be 561
Answer:
b
Step-by-step explanation:
Percents that are added together are combining percents.