Answer:
original price = $40
Step-by-step explanation:
if 70% ---> $28 then
1% ---> $28/70 = $0.4
then we know original price should be 100%
original price = 100 * 0.4 = $40
OR
basic easy function:
(28/70) * 100
$40
Answer:
= (x + 5)(x - 9)
Step-by-step explanation:
the formula for finding area is
area =l ×b or area = l×w
therefore area=l×b
=10cm×25cm
=250cm
this means the area of the poster is 250cm square