What is 9x-7=-7 in two step show your work

Find the equation of direct variation, given that y varies directly with x. x is 13 when y is 91 y = 13k k = 7 y = 13x y = 7x

A country population in 1993 was 72 million. In 1996 it was 76 million

Write an algebraic expression with two variables and one constant.

As shown below and observer is located 500 feet from a school the observer notices a bird flying at 39° angle of elevation from his line of sight what equation in trigonometry function can be used to solve for the height of the bird what is the

A town has a population of 50,000 healthy people. a resident catches zombie infection on vacation. if the transmission rate is 0.0001 per day, how many people will this zombie infect on his first day in town?

A combination lock has numbers 0-49 on it. How many different 3-digit lock combinations are possible if no digit can be repeated?

Carly is 3 times older than her brother's age. The sum of their ages is no more than 24 years. a. x+3x≤24 b. x+x+3≤24 c. x+3x<24 d. x+x+3<24 Using the inequality, find the oldest age Carly's brother can be

In triangle ABC, the measure of angle A=60 degrees, the measure of angle C=60 degrees, and the length of AB is 7 inches. Which of the following must be true? F) AC>7 G) AC<7 H) AC=7 J) AC+AB>2BC K) AC+AB<2BC

Anna is in a cave 40 feet below the cave entrance. She descends 13 feet, hen ascends 18 feet. Find her new position relative to the cave entrance

Which of the following is equivalent to 2^2/5? A. 1^7/5 B. 1^12/5 C. 1^6/5 D. 1^9/5