Answer:
Step-by-step explanation:
just 24
Betina is tall
let
x ----> Brian's height
y ----> Bonnie's height
z ----> Betina's height
we know that
so
substitute the value of x
substitute the value of y
therefore
4:25
13:40
- 17:15
_____
sorry if this is wrong
a. 3
b.15
c.8
It cost her this much = 3×15 = 45