It’s is number 1 hope this helpeddd!!!!
Well, 15% of 45 is 3, so in 4 minutes, the submarine will be 12 feet deep.
75/4=25 pages per hour, so, now we have to divide 250 by 25.
250/25=10
So, it would take Joan 10 hours to read 250 pages. :)
Answer:
I put it in the calc and it got
x=5i,−5i
It's a half of an equilateral triangle because their angles measure 30° and 60° (an equilateral triangle has 3 angles of 60°)
So x=(2h/√3)/2=h√3=27√3≈15.6
