John worked 43 hours last week; his hourly rate is $9.00. He has the following deductions, taken from his pay: Social Security tax at the rate of 6.2%, Medicare tax at
the rate of 1.45%, health insurance premiums of $15.00 and 401(k) contributions of 5%
of gross pay. John also has federal income tax withheld at the rate of 10%. Federal taxes
do not apply to the 401(k) contribution.
Second, how much is John's total deductions?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236