Seven less than four times a number equals 13. What is the number. Ok

-1.5

Step-by-step explanation:

7-4x=13

Solve for x.

Subtract 7 from both sides to isolate the variable.

7-4x=13

-7      -7

Simplify

-4x= 6

÷-4   ÷-4

x= -1.5

To check my work.

7-4(-1.5)= 13

7-(-6)=13

7+6=13

Hope this helped!

5

Step-by-step explanation:

5*4=20 20-7=13 and that's how I got the answer of five

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

it would be 0.18 because when the other choices are converted they equal those two numbers.   hope this !