Admission to a science museum is $22 for an adult. The cost for a child is $5 less than the cost for an adult. What would be the total cost of admission for 12 adults and 15 children? Explain.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

you can use the sas similarity.

a line dividing two triangle sides proportionally creates a new, smaller triangle whose angle is the same as the large triangle. its two sides are proportional to the large triangle. this implies the small and the large triangle are similar. similar triangles have all three angles the same. this implies the dividing line is parallel to the third side of the original triangle. lmk if you have questions.