1) 3a + a 2) 4c + 2c + c 3) 3b + 3b + 2b 4) 4d – d 5) 3c + 4c – 5c 6) 4a – 2a + 4a 7) b + 4b – 3b + b 8) 2c – 4c + 3c - c

Answers are below

Step-by-step explanation:

1)4a

2) 7c

3) 8b

4) 3d

5) 2c

6) 6a

7) 3b

8)0

Hope this helps

1) 4a

2) 7c

3) 8b

4) 3d

5) 2c

6) 6a

7) 3b

8) 0

Step-by-step explanation:

1) 3a + a = 4a

2) 4c + 2c + c = 7c

3) 3b + 3b + 2b = 8b

4) 4d – d = 3d

5) 3c + 4c – 5c = 2c

6) 4a – 2a + 4a = 6a

7) b + 4b – 3b + b = 3b

8) 2c – 4c + 3c - c = 0

answer4 to the second power is 16

and 4 to the third power is 64,

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours