Plz solve the following word sums for me! Q1. Mara is building a wind chime. She needs string in the following lengths: six pieces of 20 cm, 3 pieces of 30 cm, and one piece of 40 cm. How much string does she need?

Q2. A postal carrier charges £8.95 up to 20 kg then 20p for each kg over that weight.
Jane wants to send four boxes to the same address. The boxes weigh 6.4 kg, 7.2 kg,
6.3 kg, 6.1 kg.
(a) Which three of the boxes have a total weight nearest to 20 kg but still less than 20
kg?
(b) Work out the total cost of sending all four boxes together.