Solve the system of equations by substitution.

X=-4y

X+5y=2

What effect does the "a" value have on the function f (x) = log (x)

A closed form for the sum $$ s = / frac {2}{3+1} + / frac {2^2}{3^2+1} + / cdots + / frac {2^{n+1}}{3^{2^n}+1} $$ is $1 - / frac{a^{n+b}}{3^{2^{n+c}}-1},$ where $a, b,$ and $c$ are integers. find $a+b+c.$

Your company takes orders over the phone. The company's average time is 4.6 minutes. The graph below shows 4 calls and the difference between the call time and the company's average call time.

Billy watched the clown car drive up to the circus and saw 141414 clowns get out of one little car. The clowns made up 56/%56%56, percent of the performers in the circus. How many performers were in the circus?

What are the values of c and d in the matrix [[6,8],[-11,15]]-[[c+2,3],[-5, d-4]]=[[22,5],[-6,17]]

4th grade math patterns 18250, 18500, 19000, 20000 what's the next number?

3.871 round decimal to the underlined place value

You are interested in determining the effects of a recent coupon promotion on customer purchases at a local grocery store. You sample of 50 customer receipts one day after the coupon is distributed and find the customers' mean spending to be $97.

The function c (p) = 6⋅2p-1 represents the number of circles on page p in an artist's book. What does the value 6 represent in this situation? A) There are a total of 6 pages in the book. B) There are 6 circles on the first page of the book.

Victoria has a 2 pound package of flour. She uses 2/5 of the flour to make pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express your answer as a decimal.