A person named Rafiq’s annual income has increased for Tk. 3500 but there is no charge in the income tax payable for him since the rate of income tax has been reduced from 7% to 4%. Find his present income.

What is the measure of angle x? answer

Acircle has a circumference of 7.850 units. what is its radius?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?