Tells how fast a line rises or falls between any two points on that line

What is the product? (x2+3y+7) [yy+1)

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?