Atourist drives 70 miles along a scenic highway and then takes a 7-mile walk along a hiking trail. the average velocity driving is 7 times that while hiking. express the total time for driving and hiking, t, as a function of the average velocity on the hike, x.

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

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit

If wxyz is a square, which statements must be true? plz < 3