The value of y is directly proportional to the value of x. If y - 70 when x 140, what is the value of y when x 457 Record your answer by filling in the bubbles on the
griddable.

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).