Can someone help pls ok heres the question
Mr. Roosevelt has 48 nails that each weigh 1.35 ounces what is the weight of theese nails in ounces
A.50.4 oz
B.40.4 oz
C.64.8 oz
D.16.2 oz

The answer is C. 64.8 oz

Step-by-step explanation:

the perimeter is increased by a factor of 2

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.