You do 304 subtract 217 which equals 87
Ten cakes costs $2.19 (pounds, but I don't have a pounds symbol on my computer) because if you divide $2.10 by seven you get $0.3, and if you add 3×0.3 (because we have seven, and we need to add three more to get ten) we get $0.9.
0.9+2.10=2.19
80 because 160 divided by 2 is 80 so 2 x 80
42 arrived late
You add 127 and 68 to get 195 then you subtract 237 to get 47.