Use the substitution method to solve the system.

{m+n=5m−n=3

what is the solution?

there is no solution.

the solution is (4, 1).

there are an infinite number of solutions.

the solution is (2, −1).

What's the difference between: x≥0 and nonnegative integer. ?

Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?