Annika biked 37 \text{ km}37 km37, start text, space, k, m, end text this morning and another x \text{ km}x kmx, start text, space, k, m, end text in the evening. How many kilometers did Annika bike today?

(37 + x) km

Step-by-step explanation:

To know the number of kilometers biked by Annika today, we need to add what she biked in the morning to what she biked in the evening.

From the question, she biked 37 km in the morning and x km in the evening

So the total distance biked by Annika today will be (37 + x) km

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right