Caleb paid $26.70, including a 7% sales tax, for a security wallet. how much did the wallet itself cost?

answer:

n =-19

step-by-step explanation:

3* (n+7) = -36

distribute

3n+21 = -36

subtract 21 from each side

3n+21-21 = -36-21

3n = -57

divide by 3

3n/3 = -57/3

n =-19

answer:

as we know that if two   parallal line cut by a transversal   opposide angles are same and corisponging angle are same so < 1 and< 8 are same means< 1=< 8 so we can write 2x+35=10x-85

10x-2x=85+35     8x=120       x=120/8   x=15 ans is d. 15

answer:

-6& 3

step-by-step explanation:

answer:

step-by-step explanation:

7) f(x)=9x,

here x =time logged in and hence cannot be negative

so domain = [0,∞)

where here independent variable is distance the dependent is his jogging time.

8)

even when x=0, f(x) =50

so domain is [50,∞)

here independent variable is daily earnings and dependent variable is her computer sales in dollars

9)

here domain =[0,10]   (given)

in the inverse independent variable is distance travelled and dependent is time in seconds.

10)

domain =[0,∞)

here independent variable is total money earned and x number of tickets sold