Answer:
72+ 18x
Step-by-step explanation:
9x+72+5x+4x
72+ 18x
Quadratic formulat is used when
a^2+bx+c=0
x=

4m^2+3m-1=0
a=4
b=3
c=-1
input
x=

x=

x=

x=

x=

or

x=-1 or 1/4
ooof 2 weeks ago, sorry mate, i want the points doe...
4+2x=10
2x=10-4
2x=6
X=6/2
X=3
28.56-24.99= $3.57
Sam payed $3.57 in sales tax.