In the series 7+15+23+31 determine:

i) the common difference
ii) the difference between the 10th and 15th terms.
iii) The value of n given that Tn=103
iv) The general term of the series.

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

If a distance of 75 yds is measured back from the edge of the canyon and two angles are measured , find the distance across the canyon angle acb = 50° angle abc=100° a=75 yds what does c equal?

If f (x) = 2x2 +5/(x-2), complete the following statement: f(6) =