Answer:
A(r)=15-3r
Step-by-step explanation:
switch the sign of +3r to make it -3r
To solve an equation for one variable, we will utilize PEMDAS ( parentheses, exponents, multiplication/division, add/subtract) but backwards. So we will first add/subtract any numbers to the other side to get the variable by itself. We will then divide/multiply any numbers to get the variable by itself.
Root: (1/4, 0)
vertical intercept: (0, -1)
James will need 115.08mg of medicine at the start of day 6.
