It cuts off but it is “and two straight lines” PLEASE GUYS THE TEACHER WILL KILL ME!

54.3m

Step-by-step explanation:

You have 2 semicircles, one with radius 7 and the other with radius 7+2=9

Perimeter of a circle = circumference = 2*pi*r

Radius of first semicircle = (1/2) * 2 * pi * 7 = 7pi

Radius of second semicircle = (1/2) * 2 * pi * 9 = 9pi

Straight lines have length 2.

Perimeter of whole shape then = 7pi + 9pi + 2 + 2= 16pi + 4 = 54.265...=54.3

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol