At a local gym you go to, you can either pay $90 for a monthly pass, they pay $4 for each time you decide to go to the gym, or pay $13 for each time you go to the gym. Determine the number of gym visits needed for the two monthly pass options to cost the same. a. Define the variables in WORDS. (Let x = … Let y =…)

b. Write the system of equations

c. Use substitution or elimination to solve: SHOW WORK

d. State your solution in sentence form.

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?

Francisco's credit card has an apr of 28.98%, calculated on the previous monthly balance. his credit card record for the last 7 months is shown in the table below francisco is trying to figure out what this all means. answer the following questions: what is the total amount that francisco has paid in interest over the 7 months? what is the total amount that francisco has made in payments over the 7 months? how much of francisco's payments have gone to paying down the principal on his account? what is francisco's new balance at the end of month 8? what will francisco be charged for interest for month 8?