When 17900 is correctly written in scientific notation, it will be 1.7900 · 10 x
What number goes in place of the X in the above statement? ?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax