Isaac is saving $3 of his weekly allowance to buy a new video game. The total amount of money Isaac saves is represented by the equation m=3w, where m is the total amount of money saved and w is the number of weeks he has been saving money. To better see how much money he will have, Isaac created the following table. Time in Weeks, w Total Amount of Money Saved, m 3 _[blank A]_ 5 _[blank B]_ 7 _[blank C]_ Match each blank in the table with the correct amount of money that fills in that blank. blank A Select an option Select an option $9 $18 $24 $12 $21 $15 blank B Select an option Select an option $9 $18 $24 $12 $21 $15 blank C Select an option

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

2

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