Yesterday, 7/9 of the 81 students in a contest gave their speeches. How many students gave their speeches? Write answer in simplest form.

Is 80 a multiple of 4

The product of a number, I, and 0.28 is 13.44. Which equation matches this statement? A. 13.44x=0.28 B. 0.28:x = 13.44 C 0.28x = 13.44 D. x : 13.44 = 0.28

Which of the following angles have equal measure when a pair of parallel lines are crossed by a transversal? supplementary angles complementary angles corresponding angles adjacent angles

An oil company is considering two sites on which to drill, described as follows: Site A: Profit if it is found: $80 million Site B: Profit if it is found: $120 million Loss if no oil is found: $10 million Loss if no oil is found: $18 million

1) what is the approximate solution to the system of equations below? Equations: 5y-2x=5 2y+x=-4 A. (-11, - 15) B. (0, 1) C. (-2, 0) D. (0, - 2) 2) how many solutions does this system of equations have? Equations: y = - 3x+7 y = - 3x-6 A.

Find the solution set for the open sentence with the given replacement set. 4y + 2 = 18, {4, 5, 6, 7}

Which of the following must be true for an expression to be a difference of two squares? a. all variables are raised to an even power b. there are only two terms c. both terms have negative coefficients A. a, b, and c B. b and c C. a and b D.

98% of 30 what the percent

Carmen has a rope 54 feet long. she wants to cut it into 6-foot lengths to make jump ropes for the members of the jump roping team. how many jump ropes can carmen make?

Convert this decimal into a percentage: 1.125