Answer:
7
Step-by-step explanation:
So, substitute in your 4 for r, 2(3) + 1. Multiply 2 and 3 to get 6 and then add a to get 7. I hope this helps :)
Answer:
7) a
8) b
I'll give an explanation if you request one.
Answer:he will use 45 minutes to burn 540 calories . he spend a total of 50 minutes ie including 5 minutes of rest.
Step-by-step explanation: 1 minute burns 12 calories
Therefore 540÷12 = 45 minutes plus 5 minutes of rest = 50 minutes.
Answer:
Swimming is a lot of fun, but drowning is a real danger. Even kids who know how to swim can drown, so let's find out how to stay safe in the water.
Why Is It Important to Be Safe in the
