Which expression represents 12 added to 3x

Change to standard form 2.57x10^-4

A bike shop sells you a bicycle for $63 and a helmet for $21 the total cost is 150% of what the shop spent originally how much did the shop spend originally? How much profit did the bike shop or in by selling the bicycle + helmet to you?

Given the functions j (x) = x2 + 3 and k (x) = x2 - x + 4, which operation results in a 2nd degree polynomial? A) Addition B) Subtraction C) Multiplication D) No operations

Corinne earns an hourly wage on top of her weekly gas allowance for her delivery job. her weekly earnings can be shown using the following expression: 40+7.50h what does the constant term of the expression represent?

Carlo attends art class every 4 weeks, chess club every 2 weeks, and fencing every 3 weeks. If he attended all three this week, when will he attend all three again?

Is 0.090090009 rational Or irrational?

A college student earned $5400 during summer vacation working as a waiter in a restaurant on the boardwalk at the beach. The student invested part of the money at 8% and the rest at 6%.

Flip a fair coin 200 times. what is the probability that the number of heads > = 110? answer to four digits of precision.

One number is 1/2 of another the sum of the number is 72 find the numbers

How to solve the problem - 3 (4x+3) + 4 (6x+1) = 43