Is it possible to cut a scalene triangle into two congruent triangles?

No, because scalene triangles do not have any equal sides, so no matter how you cut it, the triangles will not be congruent

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.