14. Simplify: (a) 78.5 ÷ 3.14 (b) 56.272 x 41.2
(c) 4 2/9 x 3 3/8 x 7 1/2
(d) 4 4/7 ÷ 5 1/3
please do it fast
first 2 is decimals and last two is fractions

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.