Answer:
n=3
Step-by-step explanation:
5n+3=18
subtract 3 from both sides
5n=15
divide by 5 on both sides
$357.2094
rounded: $357.21
4
4q + 5 > 69 - 7
4q + 5 > 62
4q > 47
q > 11.75
We can easily silve it by splitting the middle term or by using the discriminate method *
x 2 +3x -70
x2 + 10x - 7x -70
x(x + 10) -7(x +10)
(x / 7) ( x + 10)
x = 7 or -10