Use the substitution method
7d^2+10
7(3)^2+10
7(9)+10
=63+10
= 73
Answer is 73(third choice)
1 inch to 100 feet
12 inches = 1200 feet.
Just multiply both sides by 12.
The answer is 1200 feet.
Answer:llength times width divided by 2
Step-by-step explanation:
Do you want me to right it
340 is (340-380)/20=-2, or 2 standard deviations below the mean.
420 is (420-380)/20=2, or 2 standard deviations below the mean.
95% of values lie within 2 standard deviations of the mean, so the answer is 95%.