Y=1/20x^2
The directrix of the parabola is:
x=-5
x=5
y=-5

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

answer: a) 56% women

b)44% men

step-by-step explanation:

there is no points to select.

step-by-step explanation: