Mai is given these two systems of linear equations to solve: System 1: 5x + y = 13
System 2: 20x + 4y = 64
50 + y = 13
20x = 52 – 4y
She analyzed them for a moment, and then-without graphing
the equations-said, "I got it! One of the systems has no solution
and the other has infinitely many solutions!" Mai is right!
Which system has no solution and which one has many
solutions? Explain or show how you know (without graphing the
equations)

pleaseee i need help with this

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?