Answer:

Step-by-step explanation:
√(-100)
Use the imaginary number rule 
√(-1) × √(100)
i × √(10²)
i × 10
= 10i
Answer:
y+22
Step-by-step explanation:
I think you meant the variable as lower case, sorry if I misinterpreted, but...
<em>Increased by </em>just means addition. so y <em>increased by </em>22 would translate to y+22.
Hope I helped :)
~Sunflower UwU
Hi! So, the one that doesn't belong is a) y = 4x.
I think that this doesn't belong because every other option has a number after the variable (I forget the exact term for it but it's like +7, +4, and -1 for the rest of the options)
Please let me know how I can further help you :)
(
Gggggggggggggggggggggggggggggggggggggggg
Answer:
$49
Step-by-step explanation:
70 x 30%
70 x 0.3
21
70 - 21
49