Ahospital cafeteria has 20 tables 65% of the table have 6 chairs at each table the remaining 35% of the tables have 4 chairs at each table

no. of chairs in the 65% of the tables with 6 chairs = [20(0.65)]*6 = 13*6 = 78

no. of chairs in the 35% of the tables with 4 chairs= [20(.35)]*4= 7*4 = 28

total no. of chairs in the cafeteria = 78+28 = 106

or

no. of chairs in cafeteria = {[20(0.65)]*6} + {[20(.35)]*4} = (13*6) + (7*4) = 78+28=106

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step-by-step explanation:

the true ones are a b and d

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.