The cost cc (in dollars) of renting a paddle board for: h hours is given by : c=25+7hc = 25 + 7 h. After how many hours is the cost $81?

What are the relative frequencies to the nearest hundredth of the columns of the two-way table? a b group 1 102 34 group 2 18 14

Standard deviation of 19,29,21,22,23

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall