Evaluate each expression if r=−3,s=4, and t=7 A. r^2 + square root of 8
B. t-r/ s
C. 2s^2 + r-t
D. 3 (s-t)^2

I need answers FAST! So confused! Please Help!!​​

based on context clues you gave i'm assuming the answer would be c.

complete the steps to find the area of the trapezoid.

area of rectangle = 256   square units

area of triangle 1 = 24  square units

area of triangle 2 = 16  square units

area of triangle 3 =   96 square units

area of trapezoid = 120  square units

step-by-step explanation:

x/3-10=8

x/3=18

x=48

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)