This would follow the

format
where m would be the price per cup
and b would be the money you start off with
y = A
and x = j
so we get
A = 0.75j + 14
as your answer
It should be (10+4)+(60+3)
Q=quarters, d=dimes
q+d=8
.25q+.1d=1.25
Let's set the first equation to equal d.
d=8-q
.25q+.1(8-q)=1.25
Distribute.
.25q+.8-.1q=1.25
Combine Like Terms
.15q+.8=1.25
Subtract .8
.15q=.45
Divide by .15
q=3
Now, let's solve for d in the first equation.
d+3=8
Subtract 3, and you get d=5
So, there are 5 dimes and 3 quarters in Maribel's pocket.
Check: .25(3)+.1(5)=1.25
.75+.5=1.25
1.25=1.25 which is true.
I think it’s 76 because I added it that’s a way i solved it but you can also multiple it by 1 and it will give the the same answer