Which equation best represents this situation? the sum of 21 and an unknown number equal to 30. a. 21b = 30 b. 21 + b = 30 c. 21 divided by b = 30 d. 21 - b = 30 pl me

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!