Which expressions are equivalent to -9 <+1 ? Check all that apply.
9
* +9(1)
)
• (-1)-901)
-9
-9
+1
0-6x + 1
-6x + 9
0-6x - 9

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

Simplify the expression below -3(10x+4y)+6(6x-2y)

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.