Raymond buys bottles of water at $2 each and a large pizza at $13. the total cost was $21. how many bottles of water did raymond buy?

4 bottles of water

Step-by-step explanation:

Please see attached picture for full solution.

Note that the price of the bottle of water is per bottle not total, and the price of the pizza is the total cost of that 1 pizza.

Let's check the

Total cost

= 4($2) +$13

= $8 + $13

=$21 (✓)

12.4, 12.387, 12.26, 12.252, 6.241, 6.2, 6.015, 6.009, 1.411, 1.2, 1.056, 1.007, 0.31,   0.13, 0.5, 0.04

step-by-step explanation:

ur welcome : )

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