4 boys and 5 girls are to form a line. In how many ways can this be done? Find also, the number of Permutations in which (a)The first two are girls, (b) The first is a boy and the last is a girl (c) the boys are together

this answer is !

i dont know

step-by-step explanation:

umm. i dont know

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation:

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%