In a recent survey, 8 people were each asked the number of times they have been on an airplane. here is a list of the responses. 8, 10, 21, 8, 9, 13, 24, 12 find the range of the data set.

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo

no idea

step-by-step explanation:

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0