Which expression is equivalent to (5x + 3) + (4x + 7) ?

Solve the following for y: 9x-3y=18

Write four decimals with the 4 digit in a different place in each - - - ones tenths hundreds and thousandths. Then write a statement that compares the value of the 4 digit in different decimals

Can someone simply 1.8y-9.3y-6.3y

Solve using substitution y=2+56x4x-3y=3

A diagonal of a parallelogram measures 37 inches. The sides measure 35 inches and 1 foot. Is the parallelogram a rectangle?

At a party there are 25 students over age 21 and 15 students under age 21. you choose at random five of those over 21 and separately choose at random three of those under 21 to interview about attitudes toward alcohol.

On Earth, objects weigh 6 times what they weigh on the Moon. A robot weighs 96 pounds on Earth. What does it weigh on the Moon?

Marco borrowed $150 from his brother. He has paid him back 30% so far. How much money does Marco still owe his brother?

Is 57 and 40 relatively prime

If the product of two numbers is positive, which of the following expressions must be true? One of the factors was positive. One of the factors was negative. The factors had the same sign. The factors had different signs.