23 points asap!

find the unit price and choose the better buy.

80 oz bottle of cleaner for $13.60

70 oz bottle of cleaner for $13.30

90 oz bottle of cleaner for $18.00

60 oz bottle of cleaner for $10.80

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

What is the y-intercept of the line given by the equation

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24