Solve the word problem below by creating and solving a system of equations by elimination. Shayla tutors middle school students and high school students. She charges a different rate for each. Last
week, she tutored middle school students for 5 hours and high school students for 12 hours. This week,
she tutored middle school students for 6 hours and high school students for 10 hours. She earned
$400 last week and $370 this week. How much does she charge each.

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"