The monthly cost of a certain long distance service is given by the linear function c(t) = 0.06 + 3.95 where c(t) is in dollars and t is the amount of time in minutes called in a month. find the cost of calling long distance for 140 minutes in a month

a. $17.95
b. $11.35
c. $8.40
d. $12.35

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q

1332.

this is because to get from 333 to 999 you multiply by 3, and you should do the same to the number of hours.

therefore you would do 444*3=1332