how to make the number 70 using the numbers 1,2,3,4 only once. you can use exponents, turn the numbers into double digits (for example 12+3^4)

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Point s lies between points r and t on . if rt is 10 centimeters long, what is st? 2 centimeters 4 centimeters 6 centimeters 8 centimeters