If a1 = 5 and an
= nan-1
- 4 then find the value of a3

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red