Can you guys help me with this even you just answer one of the questions in addition, subtraction, multiplication and division just explain me how to solve this and what is indicated operations? (Note): please dont answer things that were not connected to this
Directions: Perform the indicated operations

Questions:
1. 3/7 + 9/14=
2. 1/6 + 3/4=
3. 4/6 + 4/18=
4. 4/5 - 6/15=
5. 2/3 - 3/6=
6.3/7 × 4/5=
7. 5/8 ×( - 5/3)=
8. 3/4 ÷ 2/5 =
9. 9/10 ÷ ( - 4/5)=
10. 3 6/7 × 2 2/5=

Thank you

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation:

853.3

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4