4. After paying his bill at a restaurant, Derrick realized that the waiter had switched the number in the tens place with the number in the hundredths place. If he paid $24.31, what should he have paid?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units

Harry is at the depot in dover and has deliveries to make in edinburgh, glasgow and aberdeen. from dover which of the deliveries is the shortest distance?