Multiply: \left(3x-7\right)\left(4x-7\right)( 3x−7)(4x−7)

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

What is the number 321,000,000 in scientific notation? also what is the number? ?

Lines f and g are cut by the transversal d. the measure of 1 = 2x + 35 and the measure of 8 = 10x - 85. what value of x will show that lines f and g are parallel? a. 19 b. 26 c. 18 d. 15