What is the first step in solving, 3x - 12y=5 3y - x=9, using the elimination method

Find the greatest common factor (gcf) of 15 and 35

You invested $17,000 in two accounts paying 6% and 9% annual interest, respectively. If the total interest earned for the year was $1200, how much was invested at each rate? The amount invested at 6% is how much?

4 % of blank days is 56 days

3y (4y+3) what is the correct answer

How do I find the square root of 72?

Lisa sold $75 worth of play tickets. Adult tickets cost $4 each and children tickets cost $3 each. How many children's tickets could she have sold? is there more than one answer

Your brothers hourly wage is 4/5 of your sisters hourly wage. if your brother earns $10 per hour, what does your sister earn?

Jamal decides he wants to shop around for the best price for purchasing an advertisement space in a newspaper. One of the companies he contacts charges $2.00 for each line in the advertisement and an initial fee.

How does adding with decimals compare to adding whole numbers?

Scorpion was walking down the street he had 2 swords on his back but while he was walking Sub-Zero jumped on the back and took Scorpions sword while Sub-Zero already had 1 sword now how many swords does Sub-Zero have?