Which polynomial function has a leading coefficient of 1 and roots (7+) and (5 - with multiplicity 1? *f(X) = (x + 7)(x-1)(x + 5)(x + 1)

*f(x) = (x-7)(x-7)(x-5)(x + 1)

*f(x) = (x-7-7)x-(5+1)(x-(7+ 1)(x - 5 - ))

*f(x) = (x + 7 - ))x + 5+1)(x + (7 + 1)(x + (5-))

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!