Elements, they’re a pure substance and can’t be broken down into simpler substances.
Answer:
6(less than or equal sign) n+15
Step-by-step explanation:
the less than or equal sign is a less than sign with one line under it
Answer:
She get $16 dollars
Step-by-step explanation:
Answer:
Step-by-step explanation:
y intercept is <u>8.53 hrs</u>
-0.73(4) + 8.53 = <u>5.61 hrs</u>
slope is -<u>0.73 hr</u>
9514 1404 393
Answer:
x^2 +4x -21
Step-by-step explanation:
Substitute the given expressions and simplify.
f(x) + g(x)
= (x^2 +3x -28) +(x +7)
= x^2 +(3+1)x +(-28 +7)
= x^2 +4x -21
