Answer:
x=10
Step-by-step explanation:
2x=20
x=10
Yes if the submarine is decending at a constant rate of -12 they could reach the cave in less than 10 seconds.
Answer:
7*7
Step-by-step explanation:
49 = 7*7
As 7 is a prime number ( a number that can only be written as a product of 1 and itself), we are finished
Answer:
17cm
Step-by-step explanation:
The two equal sides are 14cm long so 45 - 14 - 14 = 17