Answer:
48
Step-by-step explanation:
The slope is the factor in front of x, so slope is 9.
The y intercept is 7 (that's the point of cross the y axis, where x=0)
There are multiple definitions of "standard form" for lines, so here are the two i can think of:
9x - y = -7 (the implicit function form)
or
y-7 = 9*(x-0) (the point-slope form)
Lmk if you have questions.
45+5.25n>108
-45 -45
————————
5.25n > 63
Divide both sides by 5.25
n>12