1) Answer:

2) Answer:

The answer for first equation is, option B.
and the Answer for Second equation is option D.
Interest = Pin = principal * interest rate * number of years
Let interest rate be i, then
600*i*2+150*i*4=90
1200i+600i = 90
i=90/(1200+600)=90/1800=1/20=0.05 or 5%
Answer: No
Step-by-step explanation:
What we have to do is to substitute the values of x and y that we are given into the inequality:
x = 8
y = 7
y > 4x - 6
7 > 4(8) - 6
7 > 32 - 6
7 > 26
This is not true so it isn't a solution