Answer:
A
Step-by-step explanation:
TTese are all parabolas whose axis of symmetry is the y axis. The negative coefficient means they open downwards and the positive mean they open upwards. The higher the absolute value of the coefficient is the greater the slope, so 2x^2 will be steeper than x^2 and -4x^2 will be steeper than - 2x^2.
So h(x) and j(x) are the answers.
There least common factor would be 5 since they are all divisible by 5.
.764 in percentage form is 76.4%