1. 9 x 10499 + 9 x 10501 = k x 10499; k = ??
2. On a certain trip, Paris covered 80% of the distance by car and the rest by bike. Her average car speed was 10 times her average bike speed. Her time spent biking was what % more than her driving time?
AB = AC and triangle DEF is equilateral. Points D, E and F lie on the sides of triangle ABC. The degree measure of angle A is x and the measure of angle FEC is x/2. What is the degree measure of angle DFB?Note: Figure not drawn to scale and the answer is numerical! Show method and explain your reasoning.
[No answers/solutions for now!]