I need help with these two! Pick the correct description :)

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

B. jan surveyed her friends to find their favorite season. she recorded jhi ii for summer. how many people chose summer as their favorite season?