Write the name of the period that has the digits 913

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels