Tan30=9/x so it will be 9((3)^1/2)
I am pretty sure the answer is c
Answer: how much did the calculators cost seperetely dummy
Step-by-step explanation:
Answer:
Step-by-step explanation:

2/5+3/8= 31/40 therefore he still has 9/40 to go.
to get this you multiply the two denominators together
5x8=40 which is your denominator
then you cross multiply the two numerators
2x8=16
3x5=15
to get the final
15/40+16/40=31/40
and you are left with 9/40