HELP ! what’s the answer u= 4a-3 for a ?

What is the inverse of the function f(x) = 2x + 1?

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?