Answer this as quick as possible. really need . systems of equations have one solution. (5 points) always sometimes never

Sometimes

Step-by-step explanation:

When you deal with a system of equations, there may be no solution; there may be one solution; there any positive integer number of solutions; there may be an infinite number of solutions.

The answer is : sometimes

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.