7.50h + 0.20s + 40
variable : an unknown number represented by a letter, such as h or s
coefficient : the number multiplied by the variable...in this case, could be 7.50 or 0.20.
constant : a number by itself, no variable...in this case, its 40
29.99 + 1.60 = 31.59
31.59 - 10 = 21.59
25 - 21.59 = 3.41
Tonya’s change she will receive will be $3.41
I hope this helps.
C 12 because there is a 2 in 6 chance you will get them and you times that by 6 to get 12 out of 36.