In 2008, the gas crisis hit a peak! gas prices were $4.11 per gallon, on average. now in 2018 gas prices average $2.92. find the percent change and state whether is it an increase or decrease.

It is a decrease because it went down in cost.

To find percent:

Find difference from original amount to present amount.

So we do 4.11-2.92

=1.19

Now find the percent:

1.19/4.11 is about 28%

28% change.

Someone plz double check this answer.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm