What expression can be used to find the total discount $42 30%

Teresa is creating a graph based on the equation (2y=4x-2. record four ordered pairs she can use to create her graph?

A large jar contains 1380 coins. The result of 40 coins pulled at random from the jar is given below. • 16 nickels • 10 dimes • 14 quarters Based on this information, what could be the expected value of dimes in the jar?

Ive got a big maths test tomorrow ask me questions on fractions or percentages, formula, significant figures, Pythagoras anything

A dolphin is 42 feet underwater and ascends at a constant rate for 14 seconds until it reaches the surface. Identify and interpret the intercepts for the situation.

Factor 2x2 - 11x - 21. A) (2x + 3) (x - 7) B) (x + 3) (2x - 7) C) (2x - 3) (x + 7) D) (2x + 7) (x - 3)

On the first day of summer a rainstorm brought 2.29 inches of rain to the area. During the rest of the summer there was 3 times as much rain as on the first day. What was the total number of inches of rainfall for the summer?

What value is equivalent to 4 + 3 (10 - 2 3) ? 3 means the third power.

Manny buys 4boxes of straws for his restaurant There are 500 straws in each box. How many straws does he buy?

A skateboard is on sale with a 25% discount. The original price was $120. Find the sale price.

the perimeter of the flag is 2340 ft. what is the flags width and length if the length is 330 ft. greater than the width