Can you use the sas postulate, the aas theorem, or bothto prove the triangles are congruent

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

How to solve a simultaneous equation involved with fractions?