The hire purchase cost of a radio is $6355. If the deposit is $1000 and the balance is to be paid in 9 equal instalments, each instalment will be

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

How do i take any fraction and make it into a decimal or percentage?