Question 5(a) Mr. Jones used 173 units of electricity last month. If the charge for the first 110 units was ¢150 per unit and ¢200 per unit for the rest, calculate the total bill for Mr. Jones.
(a) Mr. Jones used 173 units of electricity last month. If the charge for the first 110 units was ¢150 per unit and ¢200 per unit for the rest, calculate the total bill for Mr. Jones.
(b)Express 4 hours in seconds leaving your answer in the standard form
(c) Given the vectors r = (3-5) and p = (-7-9), if q = 2p-r, find q.
Theory