Below are two companies' rates for textbook rentals. What is the initial value for each function? What is the cost to rent a textbook for 4 months from each company?Company A: c=15m+15, where c= total cost in dollars and m= number of monthsCompany B: $19 per month per textbook

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.