There are $1.95 worth of nickels and quarters in a piggy bank. there are 3 more nickels than quarters. how many of each are in the piggy bank? you must solve this problem algebraically (no guess and check). show each step for full credit. circle your final answer.

Simplify the expression 10/11(22z) + (a+5) -1

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.