Answer:the length 7
Step-by-step explanation:each one is times 3 6x3 8x3 3x7=21
30 percentage decrease, if you need me to explain I’ll be glad to help
B. I=PRT is the simple interest formula. 120 days is 4 months, or 1/3 of a year.
I=(4,000)(0.05)(0.33333)
I=$66.67