Simplify the following expression:
7y + 2x – 10y + 3x2 - 10x
+
o 3x2 - 8x - 3y
o 3x2 – 8x - 17y
3x2 + 8x – 3y
3x2 - 12x + 3y
i need with this math

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid

Spencer has 1/3 pound of nuts he divides them equally into 4 bags what fraction of a pound of nuts is in each bag