Nataly had two dogs on a scale that weighed 10.5 kilograms together. The first dog was 0.4 of the total weight.
How much did each dog weigh?

Which statement is always true? a negative exponent cannot be part of an expression's numerator. a negative base raised to the power of 2 has a negative value. a negative base raised to the power of 2 has a positive value. any number to the first power is zero.

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Ineed me i stuck and i don’t want to get it wrong