4algebra 1b questions - 70pts

how many solutions does the system of equations have?

1. 3x = -12y + 15 and x+4y=5

2. y= 4x+ 3 and 2y - 8x = 3

3.x + 4y =12 and 5x - 20y =60

4. y -5x = -6 and 3y - 15x = -12

How do the graphs of y = 1/x and y=5/x+6 compare?

Solve 2^x=32 and rewrite this equation in a logarithmic form

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.