Pieter owns a currency conversion shop. Last Monday, Pieter changed a total of 20 160 rand into a number of different currencies.
3
He changed
of the 20 160 rand into euros.
10
He changed the rest of the rands into dollars, rupees and francs in the ratios 9:5:2
Pieter changed more rands into dollars than he changed into francs.
Work out how many more.

Help guys plz

Convert 2000 swiss francs to dutch guilders

Solve: 3x+y=6 4x-2y=18 show all work !

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?