Can someone me understand this? find the y-intercept of x: -2,1,2,4,7
y: 16,4,0,-8,-20

Solve the equation x/4 - 5= -8 -27 -12 -7 12

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.