SAT & ACT Math Practice
Sample Math Problem If there are 2 hydrogens and 1 oxygen in each molecule of water, how many hydrogens are there in 89 molecules of water?
Sample Math Problem If there are 2 hydrogens and 1 oxygen in each molecule of water, how many hydrogens are there in 89 molecules of water?
On Wednesday, Alan sent x text messages per hour for 6 hours, and Tyler sent y text messages per hour for 3 hours. Write an expression for the total number of messages sent by Alan and Tyler on Wednesday.
What is the sum of (6+2i) + (−9+11i) ?
h = 3m + 29.2 A doctor uses this model to estimate the height h of a boy, in inches, based on his age m, in years, between the ages of 2 and 6. According to the model, how many inches is a boy expected to grow each year?
If m/p = 3, then what is the value of 5p/m?
If y=px, where p is a constant, and y=32 when x=4, then what is the value of y when x=7?
If line m passes through the origin and has a slope of 1/8, then what is the y-coordinate of line m when x=16?
How many milligrams are there in 4 decagrams?
A restaurant offers salads for $7.25 each and drinks for $1.75 each. After selling a total of 198 salads and drinks in one day, the restaurant made $925.50. How many salads were sold that day?
2 trees are being studied. Tree #1 produces 20% more apples than Tree #2. If Tree #1 produces 138 apples, how many apples does Tree #2 produce?