5 less than a number is equivalent to 1 more than three times the number. what is the number

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?

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?