X=$30
y=$60
1 hour job- 60x1=60+30=90
3 hour job-60x3=180+30=210
You subtract negative 4 and negative 12...think in a number line and you find negative 4 and then you decrease( which means you move to your left of the number line) and find negative 12 and then you count the spaces you took to get to negative 12
Answer:
25π ≈ 78.5 cm squared
Step-by-step explanation:
Area of circle= πr²
Substitute: π(5)²
Solution: 25π or about 78.5 cm²
Answer:
8.26772
Step-by-step explanation:
1 centimeter is equaled to 0.393701 in inches so multiply it by 21
