Use the formula width x height = area. If the width is 4 inches and the height is 2 inches, the area equals 8 inches squared.
Answer:
19
Step-by-step explanation:
12-n/7 = -1
Cross multiply
We have 12-n = -7
Collect like terms
12 + 7 = n
Therefore n = 19
Answer:
Small candies 
Extra large candies 
Step-by-step explanation:
Let small candies 
Extra large candies 
the number of candies is at least
.

Cost of
small candy 
Cost of
extra large candy 
but she has only
to spend

Solve for

Since number of candies should be integer.
let 
total spend
which is more than
, so this combination is not possible.

She has
more so she can buy
more small candy.
Hence small candy 
extra large candy 
Answer:
- the total installment is $936
- the carrying charges are $186
- the monthly rate to buy the items are 19.23 or 20 months
Step-by-step explanation:
$39 for 24 months comes to ...
$39 × 24 = $936
The "carrying charges" are the difference between the cash price and the installment price:
$936 -750 = $186
Saving at the rate of $39 per month, it would take ...
$750/$39 = 19.23 months
about 20 months to save up the cash price.
Often, such savings would come from a once-a-month paycheck, so it would take more than 19 such paychecks to save the required amount.
hope it will help :)