Jenny has $30 in her piggy bank and she saves $5 per week of her weekly allowance. select all of the expressions that represent this situation. a.) y=30x+5 b.) y = 5x + 30 c.) an = an−1 + 5, an−1 = 30 d.) an = an−1 + 30, an−1 = 5

i know b is one of them. i dont knwo what an means in the other two

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.