X+y=20 is it linear? is it proportional?

Subtract 27x5 y - 6 3x5 y . A) - 3 3xy B) 3x2 3xy C) - 3x2 3xy D) - 6 3x5 y

In the city of Springfield, 75% of the park have tennis courts. If 15 parks have tennis courts, how many parks does spring field have all together? Ps:can you guys do it like part whole percent

At a delicatessen, you order a sandwich for $3.70, a soft drink for $1.25, and a quarter pound of pasta for $1.48. You pay with a $20 bill. How much change do you get?

X^4Y^7 divided by X^5Y^3

Joanne earns 720$ a week. She spends 1/3 of her money on groceries and household goods and 3/4 of the remaining money on rent. How much money does she spend on rent, groceries and household goods?

6 (v+2) - 7v = 6 + 5v

The formula below gives A, the area of a parallelogram with base b and height h. A=bh If a parallelogram has an area of 60 square meters, which equation gives the height of the parallelogram as a function of its base?

Sebastian went snowboarding. He rode a ski lift to the top of the ski run (an altitude of 5,000 feet). The angle of depression from the top of the run to the base of the run is 60° How long is the run?

The angle of depression from the top of the tree to the tip of the shadow is 25°. Find the height of the tree to the nearest tenth. a. 16.8 feet b. 18.2 feet c. 23.4 feet d. 39.7 feet

Reggie is making a double layer cake the recipe for the first layer 2 1/4 cups of sugar the recipe for the second layer calls for 1 1/4 cups of sugar reggie has 5 cups of sugar how much will he have left after making both recipes