The equations in the system below are equivalent.

y=2 (x+4)

y=2x+8

How many solutions does the system have?

no solution

one unique solution

two solutions

an infinite number of solutions

What fraction is larger 1 1/6 or 1 4/12

Estimate to the nearest ten (305 x21) / 44

Kelly and Adam are buying boxes filled with candy to give to friends. Kelly chooses a cone-shaped box that has radius x. Adam chooses a box in the shape of a square pyramid, with the same height as Kelly's box and a side length of xπ√.

The average yearly rainfall in the sahara desert used to be 10 inches. a climatologist believes that amount has changed. which represent the null and alternative hypothesis?

Which ratios are proportional to 14 : 21? Choose all answers that are correct.

Solve each system using substitution. 1. 4x = 3y-2; 18 = 3x+y 2. 3x+2y = 23; 1/2x-4 = y

6. How many positive integers not exceeding 1000 are divisible by 3 or 5 or 7?

bob has $830 in an account earning 5.3% simple interest. how much more interest would her account earn in 9 years with annually compounded interest?

For the quadratic equation x2 + 2x + 8 = 0, find the value of the discriminant. Then, describe the number and type of roots for the equation. Finally, find the exact solution of the equation by using the Quadratic Formula.

Shawn placed 18 weights on a scale during science class. If each weight weighed 0.1 grams, what did the scale read?