Carla was saving coins. She started with 7 coins in her collection. She adds 3 coins each month. How many coins will she have in the 8th month? Choose the rule that matches this situation.

A. 8 + 3 * 7

B. 31 coins

C. 7 + 3 * 8

D. 7 + 3

7+3 * 8

Step-by-step explanation:

It is 7+3*8 because if your going to check your work you can add 7 + 3 8s just to check it and you should get 31  

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation: