Y= kx (k being a constant)
10= k × 4 k=5/2
y= 5x/2 The answer is C.
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Answer:
4,4
Step-by-step explanation:
80×5,5%
80/1×5,5/100
4/1×5,5/5
22/5 = 4 2/5
4 2/5 = 4 4/10 = 44/10 = 4,4
Problem 7 is choice B, which is the entire number line shaded in but the value -4 has a hole at this location to mean "exclude this point from the solution set". So basically x can be any number but -4.
Problem 8 is choice C. You have a closed circle (or filled in hole) at -1.5 on the number line. Then you shade to the left of the closed circle to indicate the set of values that are smaller than this endpoint. So n can be -1.5 or it can be smaller than -1.5 (something like -2 or -3, etc).
