COMBINE LIKE TERMS WILL AWARD BRAINLIEST
answer the following-

1. 5r+6r
2. -3x+2x
3. 9a+4+9a
4. -10-4n+7
5. 5b-2+4b+5
6. 10-5v+10+3v

Any greatly appreciated! you in advance. jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later she's sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions how much money did jody make? a.$65.00b.$5288.00c.$210.00d.$310.00

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+9

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?