Elaine is 7 years older than jane. their combined age is 23. how old is elaine ?

i might be wrong but i got 16

Step-by-step explanation: you take the combined age (23) and subtract 7 because she is 7 years older than Jane so 23 - 7 = 16

Hope this helped :)

16

Step-by-step explanation:

Subtract 23by 7

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.