Imogen bought i number of invitations to send out for her party. After she sent out 19, she was left with 11. What is the value of 1?
11

19
о 30

Lie

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.