Are the equations sometimes, always, or never true?

a. 15 + 2x - 4 = 9x + 11 - 7x

b. 2x + 3 (4x - 1) = 2 (5x + 3) + 4x

leila's fish tank has 17 liters of water in it. she plans to add 4 liters per minute until the tank has atleast 45 liters. what are the possible minutes leila could add water

Which are sums of perfect cubes? Check all that apply. A=8x6 + 27 B=x9 + 1 C=81x3 + 16x6 D=x6 + x3 E=27x9 + x12 F=9x3 + 27x9

Using the formula R equals D/T where D is the distance in miles R Is the rate T is the time in hours at which rate must you travel to cover 212.5 miles in 2.5 hours?

Solve 12: (-2) x 3 - (-2)

Rewrite each sum as a product. Then identify the number of terms in each expression

What is 8.02 rounded to the nearest hundredth?

There are approximately 39.97 inches in 1 meter. How many meters are there in 240 inches

What does it mean to evaluate an expression

Determine, to the nearest tenth, the surface area of a tin can with a radius of 10 centimeters and a height of 12 centimeters.

assume that random guesses are made for 9 multiple choice questions on an SAT test, so that there are n=9 trials, each with probability of success (correct) given by p=0.6. find the indicated probability for the number of correct answers.