Someone help me with this

$13.33

Step-by-step explanation:

Shirt off 40%

Step 1) 40/100=y/28       Use percentage rules

Step 2) 40/100=11.20/28      $11.20=40% of $28

Step 3) $28.00-$11.20=$16.80    Shirt price after sale

Shirt price subtracted from total: $8.10

Hat price reverted to original:

60/100=8/y      Equation. Multiply, then divide

60/100=8/13.33  Original price of hat

i don't even know man. edge inuity be messing with us. i had to ask a question too.

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.