Noa buys 6 items that each cost $4.25 and 3 items that each cost $6.75. how much does noa spend in total?

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible