Which expressions are equivalent to 6 +(-x) + 2x + (-7) + 2x? Check all that apply.
x + x + 6 - 7 + x
2x+2+x
3- X + 2x - 4 + 2x
X-1
X+1

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone