Answer:
a) $560
b) 80%
c) $1134
Explanation:
a)
The profit is the difference between selling price and cost price:
profit = $1260 -700 = $560
__
b)
As a fraction of the cost price, the profit is ...
$560/$700 × 100% = 80% . . . . of the cost price
__
c)
A 10% discount from the selling price makes it ...
$1260 × (1 -10%) = 0.90×$1260 = $1134
A student will pay $1134 for a calculator.