A student has started a lawn care buisness He charges $15 per hour to mow lawns $20 per hour for gardening. Because he is still in school, he is only allowed to work for at most 20 hours per week His goal is to make at least $300 per week

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?