Determine whether the following system of equations has one solution, no solution, or an infinite number of solutions. Explain your reasoning.

2x - 4y = 10

7x - 9y = 12

What is the markup for a pair of hiking boots that the same store buys for $80 each if the markup rate is 15%? A. $8 B. $12 C. $15 D. $18

In how many ways can letters of the set (R, S, T, U,) be arranged to form ordered codes of 2 letters?

On a scale drawing of a house, a rectangular bedroom has a length of 8 inches and a perimeter of 30 inches. the scale is 0.5 inch = 1 foot. what is the actual width in feet of the bedroom. A. 7 feet B. 14 feet C. 15 feet D. 22 feet

in a class of 30 girls, 17 play football, 12 play hockey and 4 play both games. how many play none of the games

Solve the equation using mental math 6 and 6/7 sequels and + 5and 3/7

If the distance of an object from Earth is increased by a distance x, by what factor has its apparent brightness changed?

One night, the Flyck gave a prize to every 25th person who brought a ticket. A total of 610 people bought tickets. How many prizes were given? How many people bought tickets after the last person who won a prize?

Which of the following expressions represents "the difference of 8 and the product of 6 and n"?

Find the are of the circle d=-10in

Solve: (6 1/5+2 1/2) x 0.85