A college student realized that he was spending too much money on movies. For the remaining 5 months of the year his goal is to spend a mean of $60 a month towards movies. How much can he spend in December, taking into consideration that in the other 4 months he spent $110, $75 $50.
and $35, respectively? Round your answer to two decimal places, if necessary.

b. x + 1

step-by-step explanation:

i'am smart

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."