Answers created by Geoffrey T

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Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake bought two chocolate bars and four packs of gum and paid $2.00. Write a system of equations. Solve the system to find the cost of a chocolate bar and the cost of a pack of gum?
How do you solve $8 x - 5 y = - 46$ $8x-5y= -46$ and $8 x + 86 = y$ $8x+ 86=y$ using substitution?
How do you solve $n + 8 = 3 \times 9$ $n + 8= 3\times 9$ ?
How do you simplify $\frac{20 x^{3} - 20 x^{4}}{x^{2} - 2 x + 1}$ $(20x^3-20x^4)/(x^2-2x+1)$ ?
What is the square root of 5 times the square root of 15?
How do you factor $y = x^{2} - 2 x - 15$ $y=x^2 - 2x - 15$ ?
How do you find the domain and range of $f (x) = \frac{1}{2} (x - 2)$ $f(x)=1/2(x-2)$ ?
What is the product of the polynomials below? (6x3 + 3x)(x2 + 4)