Answer:
25
Step-by-step explanation:
pemdas
parentheses- 4 to the 2nd power is 16, 16 + 7 is 23.
exponents- 2 to the 3rd power is 8.
multiplication- 6 x 8 is 48
so then its easy from there. its 48 minus 23, which equals 25
The measures of the angles in a triangle add up to 180°.

The measures of the angles are 43°, 47° and 90°.
A ratio compares two quantities.
penguins = 8
whales = 4
8:4 , now simplify
8/4 = 2
4/4 = 1
2:1 is the ratio.
Final answer: 2:1
(x^2-3x+2)-1(3x^2-5x-1)=
x^2-3x+2-3x^2+5x+1=
x^2-3x^2-3x+5x+2+1=
-2x^2+2x+3
A) Yes; counterexample: Tripling 3 and adding one results in the number 10
B) No counterexample possible
C) No counterexample possible
D) No counterexample possible
E) Yes; counterexample: Squaring 7 results in the number 49