Solve the following system by substitution method. 2x-7y=12

-x+3.5=-6

Yolanda's club requires that 60% of the members be present for any vote. If at least 30 members must be present to have a vote, how many members does the club currently have?

Use the bar graph to find the experimental probability of the event.

Elmer is on a Ferris wheel which has a diameter of 180 ft and whose center is 120 ft off the ground. Find all of the angles θ such that 0≤θ≤3π and such that Elmer's carriage is at a height of 165 ft when it makes an angle of θ with the horizontal.

vincent's copier can print in 7 hours. chris's printer can do the same in 13 hours. how long would it take to do the job using both copiers

A business has $11,080 to spend on new laptops and tablet computers for its salespeople. The laptops cost $515 each. The tablets cost $285 each. The business wants each salesperson to have either a laptop or a tablet. There are 30 salespeople.

The Mogul Runners ski club planned a trip to Park City. Of the total number of club members, 18 signed up to go. If this is 45% of the club, how many members does the ski club have? 8 members 36 members 810 members 40 members

Congruent triangles if BCDE is congruent to OPQR then CD is congruent to

Roberto decorates retangular signs. One sign is 2/3 foot long and 1/4 foot wide. Another sign is 1/2 long and 1/3 foot wide. It takes Roberto 3/4 hour to decorate 1 square foot sign.

Leah wants to see a castle in an amusement park. She sites the top of the castle at an angle of elevation of 45°. If she knows the castle is $160 from her how tall is the castle prom at her level of vision?

Cora invested $400 at a rate of 35% for 8 months, compounded continuously. How much is her investment worth after 8 months?