Determine whether each set of side lengths could be the sides of a right triangle.

10.5 cm, 20.8 cm, 23.3 cm | 6 cm, 22.9 cm, 20.1 cm

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Can someone check if i did this correct. it’s number 4 if you’re wondering.