What is a better buy 5 minutes of a game for $10 or 7 minutes for $12

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8