Question

I need help with my money/word problems (i have 4).

the 1st one is "Jimmy earns a 5 1/2% commission. Find his commission on sales of $5,000"

the 2nd one is "The Washington family used 1,230 kw-hr of electricity one month. their rate is 7.5c per kw-hr. find the amount of their electric bill"

my 3rd is "an 18-ounce jar of peanut butter costs $3.20. find the unit price to the nearest tenth of one cent"

and the last is "Lane davis borrowed $7,000 for 2 years at the rate of 12%. find the amount of his simple interest".

Answer 1

#1. commission is 0.055 * $5000 = $_____
#2. bill = rate * kWh = 0.075$/kWh * 1230kWh = $______
#3. unit price is $/oz, so $3.20/18oz = $0.178/oz
#4. the interest is charged each year, so 7000 * 0.12*2) = _____

Answer 2

24