Use the distributive property to find 5(18) mentally. a. 110 b. 90 c. 23

90

Step-by-step explanation:

Think of 5(18) as 5(10+8).  This is easily done mentally:  50 + 40 = 90.

The answer is 90. Just simply multiply 5 by 18.

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2