ElectricPavlov

To raise something to a 'POWER' and get   ' 1 '   the exponent must be  '0'

so  2x+5   MUST = 0     2x+5 = 0   means x= -5/2

For every (6+1) flowers she has to spend $48

49/(6+1)  x 48 = 7 x 48 = $336

5 = 3^m

Take log of both sides to get

log(5)= m log(3)

m= log(5)/log(3) = 1.46497

Not sure what you are trying to 'solve'......it looks 'solved'

x * 7 +3 = 59    Subtract 3 from both sides

x*7 = 56      DIvide both sides by  7

x=8

You need to give us the size of the SMALLER screen !    Ooops ....

SLope intercept form is    y = mx + b     where m is the slope and b is the y-axis intercept

so basically if you solve thequation for y  you will have it

-2(3x+4) + y =0

-6x-8 + y = 0

y=6x+8       and there it is !    m = slope = 6     intercept=8

Solve ONE of the questions for ONE of the variables ....then substitute THAT value for the variable into the SECOND equation to solve for the second variable.   Like this:

Solve for 'y'   3x +4y = 29   

4y = 29 - 3x

y = (29-3x) / 4         Substitute this into the SECOND equation for 'y'

7x + 6y = 41

7x + 6 ( 29-3x)/4  = 41     and solve for 'x'

7x + (174-18x)/4 = 41

7x + 43.5 - 4.5x = 41

2.5x = 41-43.5

2.5x = -2.5

x = -1              NOW,  take this value of 'x' and substitute into one of the equations to find the other variable ('y')

3x+4y = 29

3(-1) + 4y = 29      y=8

I am not sure what you are asking.....   The INTEREST on a loan of $2500 if you have the loan for 9 months and the ANNUAL interest rate is 8%  would be     2500 (.08)(9/12) = $150.00       (nine months of 12 month long year)