Question

1. mr. jamison bought a toaster oven that was originally priced at $65. he received a 15% discount. what is the sale price of the toaster oven?
2. what is the simple interest if you invest 6000 with %8 rate for 5 years? (i = prt)
3. evaluate each expression.

a. -14 - (-13) =
b. -27 + (-15) =
c. 9(-12) =
d. -48 ÷ (-6) =
e. |-14| - |-4| =
f. 19 + |-6| =

1. evaluate each expression if x = 4, y = -3.

a. 5x - y
b. 6xy
c. 5y + 3x
d. 12y ÷ x

1. what is -7\frac{2}{9} as a decimal?

Explanation:

Step1: Calculate discount amount

Discount = 15% of $65 = 0.15×65 = 9.75

Step2: Find sale price

Sale price = Original price - Discount = 65 - 9.75 = 55.25

Step1: Identify variables for simple interest

p=6000, r=8%=0.08, t=5

Step2: Apply simple interest formula

I = prt = 6000×0.08×5 = 2400

Step1: Simplify double negative

-14 - (-13) = -14 + 13 = -1

Step2: Add negative numbers

-27 + (-15) = -27 -15 = -42

Step3: Multiply positive and negative

9×(-12) = -108

Step4: Divide two negatives

-48 ÷ (-6) = 8

Step5: Calculate absolute values first

-14

-

-4

= 14 - 4 = 10

Step6: Calculate absolute value then add

19 + |-6| = 19 + 6 = 25

Step1: Substitute x=4,y=-3 into 5x-y

5×4 - (-3) = 20 + 3 = 23

Step2: Substitute x=4,y=-3 into 6xy

6×4×(-3) = 24×(-3) = -72

Step3: Substitute x=4,y=-3 into 5y+3x

5×(-3) + 3×4 = -15 +12 = -3

Step4: Substitute x=4,y=-3 into 12y÷x

12×(-3) ÷4 = -36 ÷4 = -9

Answer:

1. $55.25
2. 2400

11a. -1
11b. -42
11c. -108
11d. 8
11e. 10
11f. 25
12a. 23
12b. -72
12c. -3
12d. -9

1. -7.\overline{2} (or approximately -7.22)