At heart we're being asked for a line through two points,

In general the line through (a,b) and (c,d) is

Check that you understand why both (a,b) and (c,d) are on this line.
Here our indepedent variable, instead of x, is T, temperature. Our dependent variable is v, velocity. Substituting,





That's our answer; let's check it.
When T=40, v = (5/9)40 + (2995/9) = 355 good
When T=49, v= (5/9)49 + (2995/9) = 360 good
Answer:
50:20:50
This is because you add 5+2+5=12
120/12=10
5x10=50 2x10=20 5x10=50
Answer:
16
Step-by-step explanation:
48= 3x
48/3 = x
x= 16
'product and' means multiply I googled it
Well, i don't know what you're asking, but -11,2,7,8,22?