1. There are a total of 63 bikes. If the ratio of blue bikes to black
bikes is 4 to 5, how many of the bikes are blue?

the 4th choice is the correct one

step-by-step explanation:

idk this answer sorry cant on this one.

step-by-step explanation:

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers