Answer:

Step-by-step explanation:
we know that
When multiply two numbers in scientific notation, multiply their coefficients and add their exponents.
we have

therefore

Answer:
64 cm
Step-by-step explanation:
To find the volume, you should multiply length by width, and then by height or 4 x 4 = 16, then 16 x 4 = 64
Since she has already ridden 7 miles out of 31 miles,
remaining miles to be ridden
= 31 - 7
= 24 miles
Let x be the number of miles she has to ride in each of the 4 days left.
4x = 24
x = 6
Answer:
29
Step-by-step explanation:
Answer:
Between 7 and 8
Step-by-step explanation:
6^2 = 36
7^2 = 49
8^2 = 64
9^2 = 81
since 61 is between 7^2 and 8^2, √61 is between 7 and 8