CPhill

Remember that negative numbers behave in the "opposite" manner to positive ones...

For instance ....   3 > 2  ..... but -3 < -2

So

.7 > .07    but     -.7 < -.07

Let C be the total cost....then.......

15% of C = $50     or, mathematically.....

.15C = 50              divide both sides by .15

C = 50/.15 = about $333.33

Wicked's answer is correct......let's see how it was derived.......

x + (x*3) = 44   is the same as

x + 3x = 44    simplify

4x = 44      divide both sides by 4

x = 11

-p + q - (2p + 3q) - p - q       simplifying, we have....

-p - 2p - 3q - p  =

-2p - 2p - 3q =

-4p - 3q

??????? .....I thought this question was referring to line segments......(I don't know.....maybe other interpretations are possible.....)

tl = 14 ..... lc = 11 .......tl + lc = 14 + 11  = 25

(1/2)^x=32

Notice that (1/2) = 2^-1     and 32 = 2⁵ ......so we have.....

(2^-1)^x = 2⁵         so

2^-1x = 2⁵      now, just equate exponents

-1x = 5        divide by -1 on both sides

x = -5

Let's look at this little closer.......

3(-2-3x)=-9x-4      simplify

-6 - 9x = -9x - 4     or

-9x - 6  = -9x - 4     add 9x to both sides

-6 = -4

Notice that this answer doesn't make sense....thus, the {} means there is no solution to this equation....!!!

1024^(2/5) =

[1024^(1/5)]^(2) =

4^2 =

16

This is boldface  → boldface

None of the displayed digits in your question is in boldface ........