Pls help 25 points thank you

please help me .Which sentence provides a transition? Click on the transition to select it. What is an EKG? It is a simple, painless test of your heart. Electricity goes through your heart each time it beats. An EKG measures the electricity that causes your heart to beat, so it shows doctors every heart movement. Before an EKG, a technician attaches electrodes to your skin. The EKG machine records and prints your heart activity. The test only takes about a minute and has almost no risks. However, if your heart only has a problem sometimes, doctor may your do one of several other heart tests. Study time is being recorded

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step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!