A boat traveling upstream goes 84 kilometers in 7 hours. If the return trip takes only 3 hours, what is the speed (in kilometers per hour) of the boat still in water?

10) Solve the equation for the variable "a": 2 (x + a) = 4b

Evaluate 4a + 5b when a = 2 and b = 3.1.

Factor the expression. 49b^2 42b 9 a. (7b 3) 2 b. (-7b - 3) 2 c. (7b - 3) 2 d. (-7b 3) 2

What answer describes this sequence? 99, 89.9, 78.8, 68.7, ... a) Neither arithmetic nor geometric b) Both arithmetic and geometric c) Arithmetic d) Geometric

Murray buys a car for $10,995. he gets a trade-in allowance of $3995 for his old car. if he takes out a loan at 11% interest for 4 years, how much will the monthly payments be?

How can you solve this problem 2250=5000 x R x 5

Evelyn bought 12 chicken wings for $10. What was the cost of the wings in dollars per wing?

If a^2+b^2=c^2. then the triangle is a right triangle a triangle with side length of 16m 30m and 34m is a right triangle true or false

Convert y-5=-3 (x+2) in standard form

7 times what equals 56