-320<t because the temperature has to be greater then -320
Answer:
Step-by-step explanation:
10.50 X 40=420
55-40=15
15 X 2=30
15 divided by = 7.50
420+30+7.5= 450.5
Answer: Choice D 
Reason:
Exponential functions have the variable in the exponent.
Choice A is a polynomial, which means we can rule it out. Choice B is a log function, so we can rule it out also.
Choice C is a rational function because it is a ratio of two polynomials. This rules out choice C.
Choice D is the only function with the variable in the exponent. That is assuming you meant to say
instead of 
First, find the length
L^2+W^2=D^2 )L for length, W for width, D for diagonal)
L^2=25^2-15^2=625-225=400
L=20
A=1/2 of L*W= (1/2)*20*15=150 square inches
Divide total # kg by the # of parts it is divided in to.
=3 kg ÷ 5 parts
=3/5 kg
Hope this helps! :)