what’s crossed out is just a name you can insert any name but please help

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Can someone me with the property questions for 12 13 and 14 plz

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.