7x-4y=20 for y when x=5

In January, the depth of a lake was 944 feet. In August, the depth of the lake was 519.2 feet. What is the percentage decrease of the depth of the lake from January to August?

How many yards are in 5 miles

What is the area of the trapezoid shown? (1) angle a = 120 degrees (2) the perimeter of trapezoid abcd = 36?

The sum of 2 interior angles of a triangle is 140°. What is the measure of the third interior angle? A. 220° B. 40° C. 30° or D. 50°?

What is 100% as decimals

What is the median for this set of data 37 14 22 45 57 58 61 A) 41 B) 45 C) 46 D) 58

Wich equation show you how to find 16-9

What is the greatest common factor of 42, 126, and 210? F. 2 G. 6 H. 14 J. 21 K. 42

A cash prize of $3,400 is to be awarded at a fundraiser. If 1,700 tickets are sold at $5 each, find the expected value.

The initial cost to rent a bike in hilton head is $4. Each hour the bike is rented costs $1.75. Vince is going to rent a bike and can spend at most $18.