How do I solve 39x-3y=21

What is 1 1/2 gallons in quarts

Explain why a rectangular prism composed of two unit cubes has 6 faces how do its dimensions compare to a unit cube

What coordinates solve both 6x+2y=-6 and 7x+4y=8? How do you get the answer?

What is - 6 9/10 written as a decimal

The circumference of a circle is 8π cm. What is the circle's area? 8π cm2 16π cm2 32π cm2 64π cm2

Which term best describes a fraction that has a variable or variable expression in its numerator or denominator

What is 7 4/7 simplified

Riley had to add this group of numbers (56 + 47 + 53), but he wanted to add them as quickly and as easily as possible. Here is how he decided to add the numbers: 56 + 47 + 53 = 56 + (47 + 53) = 56 + 100 = 156.

Does the rule y=-5x^6 represent an exponential function

If the legs of a right triangle have lengths of 6 inches and 8 inches, what is the length of the hypotenuse in inches?