Rainfall collected in a rain gauge was found to be 2.3 cm when rounded to the nearest tenth of a centimeter. Which measurement below that could be the actual measurement of the rainfall. A. 2.37 cm B. 2.35 cm
C. 2.27 cm
D. 2.49 cm

What is the order of operations for 2 + (3 - 9) ÷ -3 · 4 in number order 1. subtraction 2. division 3. addition 4. multiplication

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Identify the number 127 as a rational or irrational. explain