The graph below models the late fee for overdue books at the library what is the unit rate for the cost of an overdue book at this library? A)$2 per day
B)$4.50 per day
C)$0.50 per day
D)$1 per day

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.