What is 2/3×13 i need some can you me

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

What is the measure of angle x? a.101 b.158 c.44 d.79

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?