In an arithmetic sequence, the first term, a_1,a 1

, is equal to 1,1, and the seventh term, a_{7},a
7

, is equal to 61. Which number represents the common difference of the arithmetic sequence?

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

sorry i really don't know what tiles and steps you are referring to

step-by-step explanation:

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.