Can someone help me solve for x

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²