Review later
4. which expression cannot be used to calculate the total amount paid for a meal (m) including a 15% tip?
a. m + 0.15m
b. m + 1.15m
c3
| m + 20 m
d. 1.15m

x+y=90

x=30-y=x

step-by-step explanation:

if you understand you will get the answer

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

16 is the coefficient

hope this

step-by-step explanation:

20-2= what