Answer:
1
Step-by-step explanation:
because a number multiplied with 1 is equal to itself
2 hours 30 minutes
210 - 30 = 190
190 / 75 = 2.5
Sorry if I'm wrong.
if she does so multiply by seven to get final answer
x = 5
2x + 8 = 18
2x = 10
x= 5