Need the awnser for 8 and 9 please help

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Nikolas calculated the volume of the prism. his work is shown below.