If a = 8 and an = an 1 + 2 then find the value of a4.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

What is the circumference of the pie

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent