How do I evaluate a+b for a = 47 and b=31

Bryan hiked up to the top of City Creek in 3 hr and then returned down the canyon to the trailhead in another 2 hr. His speed downhill was 1 mph faster than his speed uphill. How far up the canyon did he hike?

What is 0.7 is 10 times as much as

On a trip to a lake, Kerrie and Shelly rode their bicycles four more than three times as many miles in the afternoon as in the morning. If the entire trip was 112 miles long, how far did they ride in the morning and how far in the afternoon?

Mark shoveled 1/8 ton of gravel in 1/4 hour. What was his average rate of shoveling in tons per hour?

What's the standard form for 79,031

Ryan is opening up a bookstore, where he sells both new and old books. He charges $12.50 for a new book, and $5.50 for an old book. What was Ryan's revenue last month if he sold 16 new books and 25 old books? A. $137.50 B. $62.50 C. $337.50 D. $200.

How many 2/3 ounce portions of chocolate can Anna get from the 42/3 ounces of chocolate she bought at Union Market?

Annabel is comparing the distances that two electric cars can travel after the battery is fully charged. Car A (miles) Car B (miles) Mean 145 200 Median 142 196 IQR 8 4 MAD 6 2 Part A Use the measures of center to make an inference about the data.

Which property is illustrated by this example? 12 • x • 3 = 3 • 12 • x Select the correct answer. Question 4 options: Distributive Commutative Identity Associative

Find each difference and simplify 2/3 - 5/9