The population 6th grade next year is predicted to go up by 5% of this year's population. If this year's population is 400, what is the amount of kids it will GO UP BY NEXT year?

It will go up by 20 kids. The total number of kids would be 420, but there would be 20 new kids.

Step-by-step explanation:

To find rate of change, multiply the percentage with the number. When looking for the total number, add the multiplied number to the original number.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47