( )( ) 7532 100 10 10 − 110 y y 2 2 the expression above can be written in the form ay b 2 , where a and b are constants. What is the value of a b ?.

(x+3)(x+7)

step-by-step explanation:

it would open into a square depending on the type of envelope i’m not sure about the second part

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %