18.   Dawn Lingua bought three yards of cloth to make some curtains. The cloth was on sale for $2.25 per yard. How much did Dawn pay for the cloth if the sales tax was 5%? 

    A. $7.25 B. $7.09 C. $2.36 D. $8.07

I am thinking between A B C.
I am not sure about the sales tax part.

Please note that my name is Ms. Sue.

2.25 * 3 * 1.05 = ?

Ohh I am sorry for not noticing that.

My mistake.

I've got 7.0875 which is close to the answer B.

Yes, B is the answer. 7.089 rounds to $7.09.

.   Jim paddles from one shore of a lake three miles wide at 4 mph, and John paddles from the opposite shore at 5 mph. How long will they travel before they meet? 

    A. 20 minutes B. 27 minutes C. 1 hour, 24 minutes D. 3 hours

My answer will be (B.27 minutes)

  From net earnings of $740 per month, Ginger Elliott must spend $200 for her portion of the rent on an apartment she shares with two friends. What percent of her net income is her rent payment? 

    A. 73 percent B. 32 percent C. 38 percent D. 27 percent

I know it has to be A or D for sure.

I Don't know about Jim and John.

There's a big difference between 73% and 27%. Think about it and make a choice.

Hint: Fifty percent of her earnings is $370