Answer:
a)7x-3x
b)4+28y
Step-by-step explanation:
first one follow bidmas
2nd one just do 4 times 1 =4 and 7y times 4 equals 28y
Answer:
24/25
Step-by-step explanation:
That’s not enough information to say how long he could do it. He could go slower or faster than her but by how much if so. So it’s not enough info.