After 4 days Mariah and Ashley will have the same followers of having 136
I’m not sure if this is correct but this is the way i would solve it.
first, make an equation with the given information
2x-3=30
Then, add three to both sides
2x=33
Finally, divide both sides by 2
x= 16.5
x represents the age of maggie so all you have to do is plug the solution into the equation to check your answer.
2(16.5)-3= 30
80 * 1/4 = 80 /4 = 20
80-20= 60
she has 60 dollars saved still
Answer:
for the third problem a = cb
for the 4th problem x = 5a + g
for the 2nd problem p = (q - 3r) / 4
for the first problem x = (-9 - z) / y
for the last problem: b = 15
A = 1/2 bh
75 = 1/2 b(10)
75 = 1/2 10b
multiply both sides by 2
150 = 10b
divide by 10 from both sides
15 = b
b = 15

Domain: (-∞, 2) ∪ (2, ∞)
Range: (-∞, -3) ∪ (-3, ∞)
For inverse, solve
for y.
inverse: 
Hope this helps!