How can I make my tween function parse a float instead of a double?

I have a basic tween function, but every time I run it it errors with: "Unable to cast double to TweenInfo". I know that I'm supposed to have a float there, but I need help turning the input into a float.

The function:

function tween1(object,t,property,value)
    local t = tonumber(t)
    local goal = {}
    goal[property] = value
    local tweenInfo = TweenInfo.new(t)
    local tween = tweenService:Create(object, t, goal)
    tween:Play()
end

How I call the function:

tween1(bar,0.25,"Size",UDim2.new(health / maxHealth, 0, 1, 0))