Advanced Definitions for ACT Biology
Monocot = flowering plant whose seeds have one embryonic leaf (cotyledon) Dicot = plant with seed with two embryonic leaves (cotyledons)
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Practice Math Problems for ACT + SAT
Sally is staying at a hotel that charges $88.50 per night plus tax. A 6% tax is applied to the room rate, and an additional onetime untaxed fee of $7.00 is charged by the hotel. Write an expression for Sally’s total charge, in dollars, for staying x nights.
SAT & ACT Math Practice
The function h is defined by h(x) = 6x³ + 9x² + 3cx + 24, where c is a constant. If (-4, 0) is one of the x-intercepts of h, what is the value of c?
SAT/ACT Math Practice
Find the value of x: 4x + x + x + x + x − 9 − 3 = 8 + x + x + x
Try out a sample SAT / ACT math problem!
The width of a rectangular floor is w feet. The length of the floor is 8 feet longer than its width. Write expressions for the area and perimeter of the floor in terms of w.
Systems of Equations Practice
−2x + 3y = −10.5 3x + y = 5 Find the values of x and y.
Example SAT / ACT Math Problem
In a random sample of 350 cars of a certain model, 8 have a manufacturing defect. At this rate, how many of 5,000 cars of this model will have a defect?
Practice With Lines
In the xy-plane, the equations 3x + 6y = 30 and x + 2y = a/3 represent the same line for some constant a. What is the value of a?
SAT & ACT Math Practice Problem
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.
Practice Math for Standardized Tests!
What is the sum of (6+2i) + (−9+11i) ?