Exam 2: Review and Applications of Algebra

Solve the following set of equations graphically: y = 2x + 11 5x + 3y = 0

How much is $1045 decreased by 0.5%?

Evaluate: (1 + i)^m - 1 for i = 0.0225, m = 4

New computer hardware uses 40% less energy than the current model. How much more efficient is the new computer?

Solve the following set of equations graphically: 4x + 3y = -2 y = -2

What sum of money when increased by 7% equals $52.43?

Calculate the missing value: Initial Value = 135kg; Final Value = 35kg; Percent Change =?

Solve for x to five-figure accuracy: $2 x\left(1+0.085 \times \frac{77}{365}\right)+\frac{x}{\left(1+0.085 \times \frac{132}{365}\right)}=\$ 1565.70$

What was the percent change in unit price when a box of tissues dropped from 400 to 350 tissues per box? (with no change in the price per box)?

Solve the following pair of equations. Verify your solution. 3x + 5y = 11 2x - y = 16

How much is $56 increased by 65%?

Calculate the missing value: Initial Value =?; Final Value = $75; Percent Change = 200%

Calculate the missing value: Initial Value = 0.043; Final Value =?; Percent Change = -30%

Solve for x: 2x + $\frac{1}{8} \mathrm{X}$ = x + 10

What was the percent change in unit price when a box of tissues dropped from 200 to 150 tissues per box? (with no change in the price per box)?

Simplify the following: a² x a⁶ x a

Perform the operation indicated and collect like terms: -5xy(2x² - xy - 3y²)

Future Shop's Toronto store sales increased by 3.45% from last year's sales of $2.5 million. Determine the current year's sales.

Graph following equation: 2x + y = 4 over the range x = -3 to x = 6

2(b - 2) - (b - 2) =