4. On 1 February the credit balance on Josh's Sales tax account was $2,400. During the month, sales tax on sales was $1,050, sales tax on purchases and other expenses was $900 and a repayment of sales tax was received of $200.

What was the credit balance on the sales tax account at 28 February?

A $2,050

B $2,350

C $2,450

D $2,750

5. Trevor's basic working week is 40 hours, and his basic rate of pay is $7 per hour. Overtime is paid at the rate of time and a half. In a given week, Trevor worked 46 hours. What was Trevors gross pay be for that week?

A $301

B $343

C $385

D $483