Answer:
Step-by-step explanation:
-15+45/2-6
30/-4
15/-2
-15/2
Xy = -112
x + y = -54















x + y = -54
2 + y = -54
- 2 - 2
y = -56
(x, y) = (2, -56)
or
x + y = -54
-56 + y = -54
+ 56 + 56
y = 2
(x, y) = (-56, 2)
The two numbers that multiply to -12 and add up to -54 are -56 and 2.
Answer:

Step-by-step explanation:
The given expression is -9 - 6 - (-8)
This question is on PEDMAS
Parenthesis
Exponentiation
Division
Multiplication
Addition
Subtraction
Deal with the parenthesis first;

Now deal with addition;

We subtract now to obtain;

Answer:
Step-by-step explanation:
Cost price = $n
Mark up price = selling price- cost price
= (20% × $n)
Selling price = $n + (20% × $n)
Sales tax = 5% × ($n + (20% × $n))
Total cost = selling price + sales tax
Total cost = $n + (20% × $n) + 5% × $n + (20% × $n)
= 1.2 × $n + 0.06 × $n
= 1.26 × $n.
I remember doing that yesterday i could get it for tmwr