The equation y= 20x+100 represents the membership at a local gym where y represents the total number of members and x represents the number for weeks the gym has been open. What does the
y-intercept represent in this equation?

(A). the gym gets 100 new members per week.
(B). The gym gets 20 new members per week.
(C). The gym sold 20 memberships prior to opening.
(D). The gym sold 100 membership prior to opening.

D. The gym sold 100 memberships prior to opening.

Step-by-step explanation:

i believe that the slope of the line is -5

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