Type the missing number that makes these fractions equal:
?/21 = 40/42

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5

I’m how many different ways can she give the four remaining flowers to the rest of the teachers in the afternoon