Finding average speed of 160 feet in 5 minutes 20 seconds ?

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

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

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x