How to determine if these two function are linear or not

1. 2x+y=4

2.2+y=3

x 4 2

Work out 5 power 8 x 5 to power - 2 divide by 5 to power 4

Frank has two same size rectangles divided into the same number of equal parts. One rectangle has 3/4 of the parts shaded and the other has 1/3 of the parts shaded.

Mark soup recipe make 6 servings and uses 4 carrots and 2 potatoes how many mark need to make 15 servings

Apollo Spas services 173 hot tubs. If each hot tub needs 125 mL of muriatic acid, how many liters of acid are needed for all of the hot tubs?

At the city museum, child admission is $5.90 and adult admission is $9.20. on thursday, three times as many adult tickets as child tickets were sold, for a total sales of $1273.00. how many child tickets were sold that day?

Monique had $15. After paying for 6 pounds of squid, she had $3 left. Find the cost of 1 pound of squid. $ per pound of squid

The diameter of a basketball rim is 18 inches. A standard basketball has a circumference of 30 inches. About how much room is there between the ball and the rim in a shot in which the ball goes in exactly in the center of the rim? Show your work.

What is the answer to - 2x+3=x-6?

Carlos read 4 books. How many children read fewer books. Than carlos?

Which expression is equal to 6 (b + 4) ? A. 6b + 24 B. 6b + 4 C. b + 4 D. 6b - 10