3a - 10b 5a - 2b

3a + b

С

D

Is BCD a straight line?

Show working to support your answer.

B

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

it has changed from the width and the height.

step-by-step explanation:

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval