Last one of these, but i have some other ones i dont understand if you will

C + 45° is the Exterior Angle of the Triangle

The Interior Angle with respect to C + 45° is 180° - C - 45° = 135° - C

We know that Sum of Angles in Triangle = 180°

⇒ C - 30° + C + 135° - C = 180°

⇒ C + 105° = 180°

⇒ C = 180° - 105°

⇒ C = 75°

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation: