I know I have a lot of questions Math is just so confusing. You use 30 sandwiches and 42 granola bars to make identical picnic baskets. You make the greatest number of picnic baskets with no food left over. How many sandwiches and how many granola bars are in each basket?

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  5 sandwiches, 7 granola bars in each of the 6 baskets

Step-by-step explanation:

You are being asked to find the largest common factor of 30 and 42. Your knowledge of multiplication tables tells you ...

  30 = 5·6

  42 = 7·6

The largest factor common to both numbers is 6. That is the number of baskets that can be made. The above factorizations tell you that the contents of each of those 6 baskets can be ...

  5 sandwiches

  7 granola bars

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p