A tuning fork moves with a velocity of 28.7 m/s with a frequency of 128 Hz. What is the wavelength of the sound wave being produced?
0.22 m
b. 4.46 m
3673.60 m
d. 156.70 m

Josephine has a great garden with and area of 2x2 + x - 6 square feet

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.