Which of the following is an example of an open equation?
5x + 7 = 12
12 + (–8) = 4
25 = 5(5)
8 + 0 = 8

which of the following equations has 3 as a solution
‒2b = 6
4a ‒ 5 = 12
5y = y + 8
z ‒ 15 = ‒12
is (1, 5) a solution to the equation y = x – 2?
yes
no

is (–2, –6) a solution to the equation y = 3x?
yes
no
which of (3, 5), (4, 6), (5, 7), and (6, 8) are solutions to y = x + 2
(3, 5) and (4, 6)
(4, 6) and (5, 7)
none
all
which equation would be used to generate the data in the following table?

x y
1 8
2 16
3 24
4 32

x = 2y
y = x + 7
y = 2x
y = 8x
on a treadmill, you burn 11 calories in 1 minute, 22 calories in 2 minutes, 33 calories in 3 minutes, and so on. how many calories do you burn in 10 minutes?
50 calories
100 calories
110 calories
1100 calories