30 POINTS! RIGHT ANSWERS ONLY! PLEASE! Thank you, explanation is optional. Each picture is in order please answer them in order.

16+x=30  x=14

Step-by-step explanation:

First question : 14

Second question : x(2x + 3x)

Third Question : 11

Fourth Question : 4/12

Fifth Question : m = 30 x 2w

Step-by-step explanation:

First question : If you add 16 to 14 you get 30 so 14 is X

Second question : I don't know how to explain

Third Question : If you subtract 11 from 25 you get one number lower than 15, the question says < and the smaller number eats the larger number so if you subtract 11 from 25 you get 14 and 14 is smaller than 15

Fourth Question : I'm not good at explaining fractions

Fifth Question : When you get to the 2nd week you have 30, then you basically multiply by 2 from 30 and on the 4th week you get 60

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day