7. A chemist weighed three separate test samples at 0.17 gram, 0.204 gram, and 2.3 grams. What is the total weight of the three samples?

609.9 is 85% of what number

There are ten less trumpet players than saxophone players the number of saxophone players is three times the number of trumpet players. how many trumpet players are there?

Hiw to use number lines when rounding

Solve the equation 2 (3x + 7) = - 22. A. x = 6 B. x = - 6 C. X = 2 D. X = - 2

A box contains 10 transistors, 3 of which are defective. If 3 are selected at random, find the probability that a. All are defective. b. None are defective.

The expression √7x is equivalent to the expression x√7 True or false

3 to the power of 1170

how would you rewrite this expression with parentheses to equal the given value: 5+3*2-6. you have to make it equal 10.

Simplify the algebraic expression: 15xy - 13 + 4x + 3y + xy + 21

At 3:00 ok a truck and a car leave the same intersection traveling in the same direction. The truck is traveling at 43 mph and the car is traveling at 58 mph. At what time will they be 12 mi apart?