Me and show work if needed. only 24 and 25

25.

 answer is B since it is adding he amount of the bill with the amount of the tip.

 the other 3 will all calculate just the amount of the tip

26

3x-4 needs to equal or be below 8

rearrange the formula to 3x,=8+4

so 3x<=12

12/3 = 4

 so x <= 4 to satisfy the inequality

so answer is A

i can't read the graph

step-by-step explanation:

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.