The change in temperature is +30ºC. The way I got this is that to get from -17ºC, I have to add that same number to get 0 - +17ºC. Now, I add +13, to get +13ºC. Hence, the change in temperature is +30ºC. Expression: (-17) + (+30) = (+13)

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

step-by-step explanation: