A lock has 5 buttons. The lock is opened by pushing two buttons simultaneously and then by pushing one button alone. How many combinations are possible?

Ally worked 40 hours for $14/h. she paid $72.80 in federal tax, $34.72 in social security tax, and $8.12 in Medicare tax, and she had $30 taken out for retirement savings. what was her net pay

Round 421,906 to the nearest hundred thousand and to the nearest thousand

D = RT solve for d, if R = 30 and T = 2 I don't understand how to do this

A data set has the following characteristics: Mean: 4.9 Median: 6 Mode: 6 Variance: 4 The z-score is the number of

Kareem spent $8 less than Marco at the mall. Kareem spent more than $15. How much did Marco spend?

What is the area of a 20-gon with radius 5 in

The table shows the changes in the times (in seconds) of four teammates. What is the mean change? 1=-2.43, 2=-1.85, 3 = 0.61, 4 = - 1.45

Mauricio purchased a car for 19,655. it depreciates about 4.7% each year. what is the value of the car after eight year?

How many times greater is the 8 in the hundreds than the 8 in the ones?

A cell phone store sold 450 newly released cell phones in three hours. This was 30% of the number of cell phones sold that day. How many newly released phones did the cell phone company sell that day?