a) C = 40 + 30t
b) 280 = 40 + 30t
30t = 240
t = 8
The plumber worked 8 hours
The answer is 6.
Ignore this I’m just typing for more letters
Where the coordinates of a points pedepend on the distance to the origin of the coordinate system and also depend on the angle, the coordinate system is a POLAR coordinate system.
Answer:
Sry
Step-by-step explanation:
<span>1)Simplify the fractions if not in lowest terms.
2)Multiply the numerators of the fractions to get the new numerator.
<span>3)Multiply the denominators of the fractions to get the new denominator
i think i not sure</span></span>
