Answer:24=3+x i believe this correct
Step-by-step explanation:
Your answer is 30 m/s.To find the wave speed multiply the frequency by the wavelength.
1. D; -5m+2m, because -5+2=-3
2. B; 4 terms, every part of an expression that's not the subtraction/addition sign counts as a term.
3. Not 100% sure about this one, but I'll go with B; 4x².
4. C; 5b, that term cannot be combined because the variable is different from the rest.
I hope this was helpful.
81
Step by step explaination
1 2/5 MINUS 3/10 is 1 1/10 or 11/10