Answer:
1) 25
2) (5+4)×2+6-(2×2)-1
Step-by-step explanation:
1) do exponents: 6×7-9×9+64,
do multiplication: 42-81+64,
do add & subtract: 25
2) (5+4)×2+6-(2×2)-1
(9)×2+6-(4)-1
18+6-4-1
=19
The child crawled 18 meters in 823 seconds.
Given:
A child is crawling at a pace of 176 inches every 3.37 minutes.
To find:
The distance covered (in meters) by a child in 823 seconds.
Solution:
Distance covered by a child in 3.37 minutes = 176 inches
Distance covered by a child in a 1 minute = 
1 minute = 60 seconds
Distance covered by a child in 60 seconds = 
Distance covered by a child in a 1 second:

Distance covered by a child in 823 seconds:

In 1 meter there are 39.37 inches.

The child crawled 18 meters in 823 seconds.
Learn more about the unitary method here:
brainly.com/question/19359186
brainly.com/question/20065206?referrer=searchResults
Answer:
The following are the missing numerators to make the LHS = RHS
46) 36 x³y²
47) 24 (xy)³
48) 5 (3x + 6)
49) 6(3x - 2)
50) 8m (m + n)
Step-by-step explanation:
I have attached how to derive the answer below.
Essentially, each case found what the denominator on the LHS was multiplied by to get to the denominator on the RHS. Then I multiplied the numerator by that same factor.
Answer is 26094858.
Have a great day/night :)