if h(x) = x - 2, find h(21) ]]] i'm doing summer school & i need help with questions like these so i can finish this assignment!!

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction