Which expression is equivalent to 4(3 + b)? 7 + b

12b

12 + b

12 + 4b
Pls help!!

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points

Which equation is true? i. 56 ÷ 4·7 = 82 ÷ (11 + 5) ii. (24 ÷ 8 + 2)3 = (42 + 9)2 neither i nor ii ii only i and ii i only