Answer:
Her normal rate of pay is $12.5
Explanation:
Let Hailey's normal pay = p
(15 × p) + (10 × 1.5p) = 375
p(15) + 1.5p(10) = 375
15p + 15p = 375
30p = 375
p =

p = $12.5
Her normal rate of pay is $12.5
Now we will put the value in the equation to check
(15 × 12.5) + 10(1.5 × 12.5) = 375
187.50 + 10(18.75) = 375
187.50 + 187.50 = $375