a textbook sold a combined total of 391 psychology and biology books in a week. the number of biology books sold was 71 less than the number of psychology books. how many text books of each kind was sold.

320

Step-by-step explanation:

I think you have to subtract the number and I think it will be 320

answer: 0.95, d

step-by-step explanation:

first, you have to combine the percentages of costumers ordering pizza or salad. 25% (percent of salads ordered) plus 70% (percent of pizzas ordered) is equal to 95%. then, turn 95% into a fraction: 95/100. lastly, divide 95 by 100 and you will get 0.95, d.

i don't even know man. edge inuity be messing with us. i had to ask a question too.