The fastest that a seahorse can travel is 2,640 feet per hour. what is its top speed in miles per hour? plz i need

Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.