3.1 times a number is 3.379. let x represent the unknown number. which pair of equations are both true? 3.379x=3.13.379x=3.1 and x=10.4749x=10.4749 3.1x=3.3793.1x=3.379 and x=1.09x=1.093.379x=3.13.379x=3.1 and x=1.09x=1.09 3.1x=3.3793.1x=3.379 and x=10.4749x=10.4749

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6