Dylan invested some money into the bank He agreed a simple interest of 3% per annum for a period of 2 years.

At the end of the 2-Year period the value of his investment increased by £72

Work out the value of Dylan's initial investment

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

4+(2+x) can you me solve this problem

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9