20 points and brainiest!
i really need with this math question.

a credit card advertises an annual interest rate of 23%.
what is the equivalent monthly interest rate?

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1.74 %

If 23% is compounded each month, there will be 12 intervals and then the monthly rate is: 23 ÷ 12 = 1.92 %

If 23% is compounded annually, then the monthly rate would be:

Rate = (1 + 23%)⁰°⁸³³ (power is 0.833 or 1/12)

= 1.23⁰°⁸³³ (power is 0.833 or 1/12)

= 1.0174 - 1 x 100

= 1.74 %

- "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."

step-by-step explanation: