A family has two cars. During one particular week, the first car consumed 15 gallons of gas in the second consumed 40 gallons of gas. The two cars drove a combined total of 900 miles, and the sum of their fuel efficiencies was 35 miles per gallon. What were the fuel efficiencies of each of the cars that week? Please help

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Describe how making an ‘and’ compound sentence effects your solution set