Need help with my maths work please?

Question

1. Matilda has has $1000 set aside to pay the car payments. the car payments are $98 per week.

a) How long would the money last?

b) How much would be left over at the end?

2. An online "fruit-veg" supplier delivers a $35 box every fortnight.

a) How much would this cost for a whole year?

After 16 weeks, the supplier increased the price of a box to $2.50

b) How much extra would this cost during the year?

please if you no any of them or no how to do them help me please

Answer 1

2)

a) There are 52 weeks in one year.

Fort night means a peroid of two weeks.

So in this case 26 deliveries in a year.

After 16 weeks supplier increased price of box.

So 8 deliveries ammount = 8*35 = $280

Remaining weeks are 52 - 16 = 36

36 weeks means 18 deliveries.

18  deliveries ammount = 18 * 37.50 = 675

Total ammount = 280 + 675 = $955

b)If the cost of box is $35

Total ammont for 26 fortnight 26*35 = $910

Extra cost $955 - $910 = $ 45