20+4*4 what the answer

36

Step-by-step explanation:

4 x 4 = 16

16 + 20 = 36

You want to use P.E.M.D.A.S

so in this case, you'll multiply 4 x 4 then you can add 20 to get 36

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10