Answer:
A. a + b = 180 is the correct option.
-4/5=2b
since b is alrteady in the subject of the equation simply divide both side of the equation by the coefficient of b
:. (-4/5)/2= 2b/2
-4/10=b
:. b=-2/10 or -0.4
900 as a fraction is 9000/10
Answer:
a. $583
b. $30,316
Step-by-step explanation:
a. Commission last week;
= 5,300 * 11%
= $583
b. Commission in 2011 assuming weekly earnings of $583.
= 583 * 52 weeks
= $30,316

Multiply without the decimal points, then put the decimal point in the answer

2.439 has 3 decimal places
10.2 has 1 decimal place
Therefore, the answer has 4 decimal places