**Answer: First solve the parentheses using order of operations. Then add and subtract from left to right.**

Demo:

(3 * 11) = 33

Equation now looks like:

63 - 21 + 33

63 - 21 = 42

Equation now looks like:

42 + 33

42 + 33 = 75

**The value of this expression is 75.**

**Answer:**

The solutions of the system of equations are (-1,8) and (5,2)

**Step-by-step explanation:**

-------> equation A (equation of a line)

----> equation B (vertical parabola open upward)

Solve the system of equations by graphing

Remember that the solution is the intersection points both graphs

using a graphing tool

The intersection points are (-1,8) and (5,2)

see the attached figure

therefore

The solutions of the system of equations are (-1,8) and (5,2)

**Answer:**

download phto math and scan

**Step-by-step explanation:**

**Answer:**

192ft

**Step-by-step explanation:**

A: h(b1 + b2)

**Answer:**

7 T-Shirts

**Step-by-step explanation:**

**Given:**

100 Dollar

30 = sweater

42 = Jeans

4 each = t-shirts

**Solution:**

30+42 = 72

100-72 = 28

28/4=7

Therefore she can buy 7 T-Shirts.