31. Sue enjoys her coffee. She spends $ \$ 7.50 $ per day at the coffee shop each weekday. She brews her own on the weekends and spends $ \$ 40 $ a month on the ground coffee. How much is Sue spending annually on coffee?
(a) $ \$ 2430 $
(b) $ \$ 3210 $.
(c) $ \$ 870 $
(d) $ \$ 840 $

Answer

Expert–verified

Hide Steps

Answer

$\text{Annual cost} = 190 \times 12 \text{ months} = \$ 2280 $

Steps

Step 1 ：$\text{Cost per weekday} = 7.50 \times 5 \text{ days} = \$ 37.50 $

Step 2 ：$\text{Cost per month} = 37.50 \times 4 \text{ weeks} + \$ 40 = \$ 190 $

Step 3 ：$\text{Annual cost} = 190 \times 12 \text{ months} = \$ 2280 $