Answer:
840
Step-by-step explanation:
if it can hold 70 in 20 minutes it can hold 210 in 1 hour and 4x210 equals 840
Answer:
x = -9, -3
Step-by-step explanation:


x = -3, -9
Answer:
3i √3
Step-by-step explanation:
you can't have the square root of a negative number
so we use "i"
The answer is d.61. 66+7=73. 13+8=21. 52+9=61. 10+10=20