Which choices are common factors of the numerator and denominator of the fraction? 21/28

In djkl, side jk measures 10.6 inches, side kl measures 7 inches, and side jl measures 5 inches. based on the information that is provided, which could be a correct set of angle measures for these sides? angle j = 23.2°, angle k = 33.5°, angle l = 23.2° angle j = 23.2°, angle k = 33.5°, angle l = 123.2° angle j = 123.2°, angle k = 23.2°, angle l = 33.5° angle j = 33.5°, angle k = 23.2°, angle l = 123.2°

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Me. i can't figure out this question. give an explanation too. .