Answer:
9 = X -1 X = 10
Step-by-step explanation:
Add one to both sides
a function can't have one input mapped to multiple outputs. this is the case for where 4 maps to -2 and 2, so remove (4, -2)
1.99g+19.99
it’s a 19.99 fee, then for every game (g) you download it’s 1.99 extra.
10√2 is the answer for square root of 200