Please help me, the booklet says that the answer is $620, but I need working out

Given details :

The selling price of a chandelier is $899The profit gained js 45%

To find :

The cost price / Wholesale price

Solution :

We know that CP is ,

Put the values in the formula ,

Simplify 899 with 145 that gives us 6.2CP = $620

Aye bruh i don’t know this but someone else who smarter than us will answer this

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.