Answer:
78
Step-by-step explanation:
Since you know Z = 2, you can plug it into:
Y = 5 · Z²
Y = 5 · (2)²
Y = 5 · 4
Y = 20
Now that you know Y = 20, you can plug it into:
X = 2 + 5Y
X = 2 + 5(20)
X = 2 + 100
X = 102
Now that you have X, plug it into "2+2X=?"
2 + 2x = ?
2 + 2(102) = ?
2 + 204 = ?
206 = ?
Answer:
1. 1 yard
2. 15,840 feet
3. 72 inches
4. 15 feet
5. 2 miles
6. 4 feet
7. 66 inches
8. 4 feet
9. 2,280 feet
10. Donald swam further since Donna only swam 300 feet.