Is the substitution below done correctly if the solution to the equation is x=-1? 5x+9=2(3+x)
5(-1)+9=2(3+(-1))
-5+9=2(2)
4=4
LHS=RHS

Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?