Find Rachel's age and her sister's age.9 Javon bought three pencils at a store for $y each. Laila bought four of the same kind
of pencil in another store for $3 more per pencil than Javon did. How much did Javon
pay for his penols? How much did Laila pay for her four pencils?
​

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

rotation point l

step-by-step explanation:

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

0lz try yourself sorry for not answering