I will give yall extra points please help

-63

Step-by-step explanation:

Solve parenthisis first. Solve the exponent inside the parenthhisis. 4 to the 2nd power is 16. -25+16=-9. -9*7=-63

P

E

MD

AS

Step-by-step explanation:

PEDMAS stands for

Parentheses (brackerts

Exponents (squared, squared roots, powers)

Divide and Multiply from left to right

Add and Subtract from left to right

This means in this case that we first look at everything inside the brackets and at the end multiply by 7. The inside of the brackets says -25 + 4². In PEDMAS, the E (exponent) comes before A (add), so we do 4² first and then we do the -25. This results in:

-25 + 4² =

-25 + 16 =

-9

So now we are left with (-9) x 7

This is just a multiplication which gives us -63.

I hope this helps!

  about 5.6 days

step-by-step explanation:

we can fill the given information into the decay equation and solve for the value of t at which half the sample remains.

the half-life is about 5.6 days.

f-1(x)= cube root of 19x squared/x

step-by-step explanation: