I need help it math and i am failing

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

Two positive integers are 3 units apart on a number line. their product is 108. which equation can be used to solve for m, the greater integer? m(m – 3) = 108 m(m + 3) = 108 (m + 3)(m – 3) = 108 (m – 12)(m – 9) = 108

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.