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

Mariana had a $20 gift card to an online music store. she spent the entire amount on songs, which cost $1 each, and music videos, which cost $2 each. Mariana bought five more songs than music videos.

A school as 625 students and 325 of them are girls. what fraction of them are girls

I need the answer really soon! What is the standard form of the number shown in this calculator display? 1.46e-6 Enter your answer in the box. P. S. the one is part of the number

Sylvia read that the height of the Empire State Building is 443.2 m and wants to build a scale model of the building in her room. She knows that the height of the ceiling in her room is 8 ft.

Convert 6 4/9 into a decimal

A square garden plot measures 44 yards on each side. What is the length of the diagonal of this plot?

What are the roots of the equation X squared plus 6X - 9 equals zero?

Eli is making guacamole. He uses 2 tablespoons of cilantro for every 3 avocados. At this rate, how many tablespoons of cilantro will he need for 9 avocados?

How do you find the mean, median and mode?

1 3/4*2 1/2 in simplest form