Acoat originally costs $75. it is on sale for $52.50. what percent is the discount?

The discount percentage on the coat = 30%

Step-by-step explanation:

Here, the original cost of the coat = $75

The sale price of the same coat = $52.50

Now, here DISCOUNT = ORIGINAL PRICE - SALE PRICE

= $75 -  $52.50 =  $22.50

⇒The discount amount on the coat = $22.50

⇒The discount percentage on the coat = 30%

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.