Answer:
12u+30 is the answer ^^
because 5×4 is 20 20-8 is 12 and 5×6 is 30
You would set this up as Part÷Whole=Percent÷100
Part=117
Whole= X
Percent=78
117÷X=78÷100
Set these up as fractions and cross multiply. You will get 117×100=78X
117×100=11,700
Divide both sides by 78 and you get x=150
There were 150 problems
In order for S(t) to equal to 0, it would take 9 years. If you multiply 9 times the -120, you will get -1080, then you add that to the +1,080 and the answer is 0.
A. p=25,000*(1+0.05)^t
b. p=25,000(1+0.05)^20=66,332
Answer: 56554
Step-by-step explanation: