Given: is perpendicular to , which is the base of isosceles prove:

Which logarithmic equation is equivalent to the exponential equation below? e^a=55(you will receive 34 points)

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

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?