For four Fridays in June, Grace earned $21.50, $29.75, $32.00, and $15.25 from babysitting. In July, she earned $8 more for babysitting four Fridays than she did in June.

What is the increase in the mean for July compared to June?

Round the answer to the nearest penny.

Enter your answer in the box.

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constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

to rewrite a literal equation you may need to divide by a number, or by a variable.

hope i .