Adam writes 10+8=18 on the board. maria wants to use the commutative property of addition to rewrite item adams addition sentence. what number sentence should maria write.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Write the factored form of this trinomial 9x^2+18x-7