Answer:
Substitute in the values of both given coordinates & form 2 equations:

Find the value of B from the equation 2A - B = 1:

Substitute in the B-value to the other equation:

Find the B-value using the equation from before:
Therefore the equation Ax + By = 1 would equal:

90% as a decimal is .9 and then as a fraction in simplest form is 9/10
Hope it helps
Answer:
$24,960
Step-by-step explanation:
1. Find daily salary (12*8 hours = 96/day)
2. find weekly salary (96*5 days = 480/week)
3. find annual salary (480*52 weeks = 24,960/year)