The pairs of goldfish Tasha can buy for $20 are 
Step-by-step explanation:
To find the how many type of goldfish that Tasha can buy for $20 is the set of positive ordered pairs.
Let x denote the number of fancy goldfish.
Let y denote the number of common goldfish.
To find how much goldfish can Tasha buy for $20 is to substitute the value for x in the equation 
Now, substituting 
in , we get,
The ordered pair is 
Similarly, substituting 
,
For 
,
For 
,
For 
,
For 
,
For 
,
Thus, the pairs of goldfish Tasha can buy for $20 are
6)
80+160+100+8x+8+5x+10=540
13x + 358 = 540
13x = 540 -358
13x = 182
x = 182/13
x = 14
answer x =14
7)
7x+13=8x-8
8x-7x=13+8
x = 21
answer x = 21
Answer: 72.5 degrees
Step-by-step explanation: Call smaller angle x, so larger angle is x+35, so 2x+35=180, subtract 35 from both sides, 2x=145, so x=72.5! I hope this helps you
A) total cost = 3b+(9*5)
B)
she makes 4 bowls every visit (5) so 5*4 = 20 total bowls
total cost = 3(20) +(9*5) = 60+45= 105 dollars
Um.. Not exactly sure how too work with temperature, but with basic math
99oF im assuming
Worth a shot
