Hi! i think it’s d, just by process of elimination!! it cant be any of the others, and d estimates to be right.
Answer:
3.51 for 1 day 45.63 for 13 days u could also look up what's 9% of 39 then just times it by 13
[(21 + 6) − 3^2] ÷ 9 ⋅ 2=[(27) − 9] ÷ 9 ⋅ 2
=18 ÷ 9 ⋅ 2
= 2 . 2
= 4
