3 pencils sell for $0.99, How much would 7 pencils cost.

2.31

Step-by-step explanation:

Thisis because when you have o figure the unit rate which is found by doing 0.99/3 or to   remember the formula cost/total number of whatever than you get 0.33   is unit cost for one no multiply that by 7

i dont know men

step-by-step explanation:

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 %