Draw a number line to show that 3/5 and 6/10 are equivalent

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)- 144x+360 what am i doing wrong?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

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