Substitution methode:
y=2x-5
4x-y=7
i thought you do it like this:
4x-2x-5=7
2x-5=7
2x=12
x=6
but that's not right.. what did i do wrong?

Which graph represents the function g(x) = |x + 4| + 2?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets