How many ways can 5 people-a, b, c, d, and e-sit in a row at a movie theater if (a) a

and b must sit together; (b) c must sit to the right of, but not necessarily next to, b; (c) d

and e will not sit next to each other?

EABDC?

Explanation:
I don’t know who C must sit to the right of I was assuming A but not sure.

If A and B must sit next to each other and D and E cannot split D and E on either side of A and B. C doesn’t have to sit directly next to B but to the right of A so sit it next to D

Given:

Rate of simple interest = 5%

Time = 4 years

Total interest = $160

To find:

The amount borrowed by Austin from a credit union.

Solution:

The formula for simple interest is:

Where, P is principal, r is the rate of interest and t is the number of years.

Putting in the above formula, we get

Multiply both sides by 5.

Therefore, Austin borrowed $800 from a credit union for 4 years.