Christy and her friend Tanya go to Target to buy some face moisturizer and body lotions. Christy spends twice as much as Tanya, who pays 50$ for two face moisturizers each and 60$ per body lotion, buying four of them. How much money did they spend together in total? Give the rationale and then the answer.
Let's think step by step. The total amount Tanya spent on face moisturizers is 50 * 2 = $100. If she bought four body lotions, the total cost is 4 * 60 = $240. Tanya spent a total of 240 + 100 = $340 in the store. If Christy spent twice this amount, the total was 2 * 340 = $ 680. The total amount of money they both spent is 680 + 340 = 1020$.. The answer is: 1020.

Renaldo drove 15 kilometers. Ernesto drove 7 kilometers more than one-third of Renaldo's distance. How many kilometers did the 2 men drive in total? Give the rationale and then the answer.
Let's think step by step. Renaldo = 15 km. Ernesto = (1 / 3) * 15 + 7 = 12 km. Total = 15 + 12 = 27 km. Renaldo and Ernesto drove a total of 27 kilometers.. The answer is: 27.

The buyers who came to Mr. Brandon's shop yesterday bought goods worth $80. If 2/5 of the total amount of sales Mr. Brandon made yesterday were credit sales, and the rest were cash sales, how much did Mr. Brandon get from cash sales? Give the rationale and then the answer.
Let's think step by step. 2 / 5 of the total amount of sales Mr. Brandon made yesterday, which were credit purchases, were worth 2 / 5 * $80 = $32. The cash sales that Mr. Brandon made yesterday was $80 - $32 = $48.. The answer is: 48.