Determine which equations below, together with the equation x-y=2, will form a system with no solutions.

y=5

x-y=4

x+y=2

y+x=2

If the sum of a number and four is doubled the result is three less than the number. Find the number

Is 1.7 greater than 1 7/9

How would you estimation to evaluate this expression: 10.2 times (2time3.7) plus 8

Evaluate (a + b) 2 for a = 2 and b = 3. 10 25 13

Round $7.345 to the nearest cent

Factor completely 2x² - 12 + 10

On a recent day one US dollar was worth 1.09 euros. If you were to exchange 157 euros on that day how many US dollars would you have received? -$111.09 -$144.04 -$155.91 -$171.13

If the volume for 3-D pyramid A is 200 cm3 and the volume for 3-D pyramid B is 800 cm3, how many times bigger is the volume of pyramid B than pyramid A? is it 4 or 0.004

What is the percentage chance of a solution 150 g active ingredient in a total of 1000 mL of solution

Three people toss a fair coin and the odd one pays for coffee. if the coins all turn up the same, they are tossed again. find the probability that fewer than 4 tosses are needed.