<span><span><span>1. a = b means a is equal to b.
2. a ≠ b means a does not equal b.Operations1. Addition: If a = b then a + c = b + c.</span></span><span><span>2. Subtraction: If <span>a = </span>b then a – c = b– c.
3. Multiplication: If a = b then ac = bc.
<span>4. Division: If a = b and <span>c ≠ </span>0 then a/c = b/c.</span></span></span></span>
Answer:
letter C
Step-by-step explanation:
hope this helps
Answer:
Step-by-step explanation:
so the first year is $1700
in that case: a(1)=1700
each year it goes up by $70
then in nth year it's: a(n)=a(n-1)+70