Answer:
15
Step-by-step explanation:
2.25 times 20=45
45-30=15
1 is <span>y = 15x, in 9 years he will have saved $13,500
2 is </span><span>x2 − 4x − 21
</span>
Is b I already did that question like a lot of times is so easy trust me is b
Answer:
First of all I don’t see a question the only reason I clicked onto it was because of the brainlest which I can assume I won’t get since I didn’t answer anything (because there is nothing to answer)
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
sqrt x can be zero, but you can't sqrt a negative number. there is no further restrictions on sqrt x, there it goes to positive infinity.
