HELP! I need help with this math problem
-10+10x-7x+7

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms