It will be 80 because 80/4=20 and 20+80=100
Answer:
7^4
7 to the fourth power
7 ·7·7·7
Step-by-step explanation:
Because 7 to the fourth power is 7^4 and that equals 7·7·7·7
Answer:
scalene triangle
Step-by-step explanation:
Let X and Y be the digits.
If a two-digit number is written XY, then its value is 10x+y.
When the digits of the number are interchanged, it's YX, and its value is 10y+x.
The sum of the digits is 12.
The number formed by interchaning the digits is 54 more than the original number.

The digits X and Y are 3 and 9, so the original number is 39.
If h is m above the ocean and your trying to find when the rocket reaches that ocean… as the function gives the height above the ocean at a given time, when the height equals 0 the rocket will have reached the ocean so solve for t when h=0. working out in the photo. i got t=48.88seconds