Adults can burn 210 calories per hour riding a
bike. If your bike ride was
21 hours, how many
calories would 8 adults
burn?

210 x 21 = 4410 calories burned for 1 adult

4410 x 8 = 35280 calories burned for 8 adults

Step-by-step explanation:

First you figure out how much calories are burned total for 1 adult on a 21 hour bike ride with the information that you know of how much adults burn.

Next you multiply your answer by 8 to figure out the total of calories burned for all 8.

Step-by-step explanation:

35280 calories would be burnt.

I think it will help you.

210×21=4410

Now,

4410×8= 35280.

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.